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:  Two siblings presented with typical clinical features of congenital pulmonary alveolar proteinosis ( PAP ) .
Example Output: pulmonary

Example Input:  Iliac crest biopsy samples were taken and bone histomorphometry carried out .
Example Output: bone

Example Input:  These differences make mature mice more susceptible to brain oxidative damage .
Example Output:
brain