You will be given a definition of a task first, then some input of the task.
In this task, you're given two sentences. Indicate if the first sentence clearly entails the second sentence (i.e., one can conclude the 2nd sentence by reading the 1st one). Indicate your answer with '1' if the first sentence entails the second sentence, otherwise answer with '0'.

Sentence 1: A statement said to be from al Qaida, claimed the terror group had killed one American and kidnapped another in Riyadh. Sentence 2: A U.S. citizen working in Riyadh has been kidnapped after a colleague in the same company was shot dead yesterday.
Output:
1