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

Example Input:  Mean CBF values were higher in patients ( P < . 005 ) than in control subjects in all cerebral artery territories .
Example Output: cerebral

Example Input:  Lung transplant 8 0 1 31
Example Output:
Lung