From a sequence of answers, a last remaining answer is selected. A set of answers in the sequence of answers are responsive to a set of questions resolved during an analysis of a reported problem in a data processing environment. An answer pair is formed using the last remaining answer and another answer which immediately precedes the last remaining answer in the sequence of answers. A probability is determined of the last remaining answer being caused by the other answer in the answer pair. When the probability is below a threshold value, a review workflow is triggered corresponding to a portion of the analysis. The portion includes a question corresponding to an answer in the answer pair.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A method comprising: selecting, from a sequence of answers, a last remaining answer, wherein a set of answers in the sequence of answers are responsive to a set of questions resolved during an analysis of a reported problem in a data processing environment; forming an answer pair using the last remaining answer and another answer which immediately precedes the last remaining answer in the sequence of answers; determining a probability of the last remaining answer being caused by the other answer in the answer pair; and triggering, responsive to the probability being below a threshold value, a review workflow corresponding to a portion of the analysis, wherein the portion includes a question corresponding to an answer in the answer pair. 2. The method of claim 1, wherein the review workflow for the portion comprises a re-analysis workflow for the portion. 3. The method of claim 1, further comprising: computing an overall probability using a set of probabilities corresponding to a set of answer pairs formed from the sequence of answers; and triggering, responsive to the overall probability being above an acceptance threshold value, a problem closure workflow for the reported problem. 4. The method of claim 1, wherein the probability is computed using a knowledgebase of a subject-matter domain to which the reported problem pertains. 5. The method of claim 1, further comprising: forming a question to present to a Q and A system, the question requiring the Q and A system to compute the probability. 6. The method of claim 1, further comprising: marking the last remaining answer as ineligible for further consideration, the marking making an answer that is immediately previous to the last remaining answer the last remaining answer in the sequence. 7. The method of claim 1, further comprising: determining, for each answer in a set of answers obtained in a root cause analysis exercise for a problem, a convergence factor relative to the problem, the convergence factor resulting from a natural language processing (NLP) of each answer; and arranging the set of answers in an increasing order of the convergence, the arranging resulting in the sequence of answers. 8. The method of claim 1, wherein the analysis is a root cause analysis wherein the sequence of answers is formed during the root cause analysis of a problem, wherein the sequence of answers corresponds to a sequence of questions answered in the root cause analysis. 9. The method of claim 1, wherein the method is embodied in a computer program product comprising one or more computer-readable storage devices and computer-readable program instructions which are stored on the one or more computer-readable tangible storage devices and executed by one or more processors. 10. The method of claim 1, wherein the method is embodied in a computer system comprising one or more processors, one or more computer-readable memories, one or more computer-readable storage devices and program instructions which are stored on the one or more computer-readable storage devices for execution by the one or more processors via the one or more memories and executed by the one or more processors. 11. A computer usable program product comprising one or more computer-readable storage devices, and program instructions stored on at least one of the one or more storage devices, the stored program instructions comprising: program instructions to select, from a sequence of answers, a last remaining answer, wherein a set of answers in the sequence of answers are responsive to a set of questions resolved during an analysis of a reported problem in a data processing environment; program instructions to form an answer pair using the last remaining answer and another answer which immediately precedes the last remaining answer in the sequence of answers; program instructions to determine a probability of the last remaining answer being caused by the other answer in the answer pair; and program instructions to trigger, responsive to the probability being below a threshold value, a review workflow corresponding to a portion of the analysis, wherein the portion includes a question corresponding to an answer in the answer pair. 12. The computer usable program product of claim 11, wherein the review workflow for the portion comprises a re-analysis workflow for the portion. 13. The computer usable program product of claim 11, further comprising: program instructions to compute an overall probability using a set of probabilities corresponding to a set of answer pairs formed from the sequence of answers; and program instructions to trigger, responsive to the overall probability being above an acceptance threshold value, a problem closure workflow for the reported problem. 14. The computer usable program product of claim 11, wherein the probability is computed using a knowledgebase of a subject-matter domain to which the reported problem pertains. 15. The computer usable program product of claim 11, further comprising: program instructions to form a question to present to a Q and A system, the question requiring the Q and A system to compute the probability. 16. The computer usable program product of claim 11, further comprising: program instructions to mark the last remaining answer as ineligible for further consideration, the marking making an answer that is immediately previous to the last remaining answer the last remaining answer in the sequence. 17. The computer usable program product of claim 11, further comprising: program instructions to determine, for each answer in a set of answers obtained in a root cause analysis exercise for a problem, a convergence factor relative to the problem, the convergence factor resulting from a natural language processing (NLP) of each answer; and program instructions to arrange the set of answers in an increasing order of the convergence, the arranging resulting in the sequence of answers. 18. The computer usable program product of claim 11, wherein the analysis is a root cause analysis wherein the sequence of answers is formed during the root cause analysis of a problem, wherein the sequence of answers corresponds to a sequence of questions answered in the root cause analysis. 19. A computer system comprising one or more processors, one or more computer-readable memories, and one or more computer-readable storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the stored program instructions comprising: program instructions to select, from a sequence of answers, a last remaining answer, wherein a set of answers in the sequence of answers are responsive to a set of questions resolved during an analysis of a reported problem in a data processing environment; program instructions to form an answer pair using the last remaining answer and another answer which immediately precedes the last remaining answer in the sequence of answers; program instructions to determine a probability of the last remaining answer being caused by the other answer in the answer pair; and program instructions to trigger, responsive to the probability being below a threshold value, a review workflow corresponding to a portion of the analysis, wherein the portion includes a question corresponding to an answer in the answer pair. 20. The computer system of claim 19, wherein the review workflow for the portion comprises a re-analysis workflow for the portion.