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.

Ex Input:
 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 ] .

Ex Output:
brain


Ex Input:
 Older siblings ' conditions were diagnosed after 1 year of age and after the onset of pulmonary disease .

Ex Output:
pulmonary


Ex Input:
 Although values that could be predictive of brain ischemia could not be established , an incomplete recovery or continuous decrease in PtiO2 values after definitive clipping should be considered an indicator of high risk for the development of post - operative brain infarction , and , therefore , an indication for verification of the position of the clip .

Ex Output:

brain