Definition: In this task, you are given a sentence. You are expected to write the name of the organism substances in the body mentioned in the input. Although there might be several correct answers, you need to write one of them.
Input:  Portal venous blood draining into the liver from the intra - abdominal abscess had increased levels of TNF - alpha , IL - 1beta , and IL - 6 in both sterile and septic groups compared with a control normal animal group .
Output:
blood