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:
 These results would suggest that 6 - NO ( 2 ) - 7 - OHC and 7 , 8 - OHC might have a therapeutic role to play in the treatment of renal cell carcinoma .

Ex Output:
renal


Ex Input:
 In summary , defense mechanisms against oxidative stress in the brain differ with age .

Ex Output:
brain


Ex Input:
 RT - PCR analysis revealed constitutive expression of the SLAP - 2 gene in bone marrow macrophages .

Ex Output:

bone