instruction:
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.
question:
 Tissue - type plasminogen activator ( tPA ) regulates activation of plasminogen into plasmin and is expressed in various regions of the brain especially in the hippocampus [ 143 ] .
answer:
brain


question:
 Of 2564 persons screened , 53 had melanoma or nonmelanoma skin cancer ( 2 . 1 % ) .
answer:
skin


question:
 The extracorporeal membrane used in a continuous renal replacement therapy ( CRRT ) for the treatment of a critically ill patient with acute renal failure ( ARF ) is vitally important for several reasons , including its influence on biocompatibility and filter performance .
answer:

renal