In this task, you will be given sentences in which your task is to recognize the name of the organ of the body. An organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Although there might be several correct answers, you need to write one of them.

Example 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 .
Example Output: liver

Example Input:  This study was conducted to identify preoperative factors correlating with limited motion after rotator cuff repair ( RCR ) and to evaluate the affect of loss of motion on outcome .
Example Output: rotator cuff

Example Input:  Acute ablation of Langerhans cells enhances skin immune responses .
Example Output:
skin