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:
 primary pancreatic sarcomas are extremely rare .

Ex Output:
pancreatic


Ex Input:
 Inhibition of platelet aggregation was also observed with the N - terminal fragment of lactotransferrin ( residues 3 - 281 ; 50 % inhibition = 2 microM ) and with CFQWQRNMRKVRGPPVSC synthetic octodecapeptide ( residues 20 - 37 ; 50 % inhibition = 20 microM ) corresponding to one of the two external loops ( residues 28 - 34 and 39 - 42 ) where we recently located the receptor - binding site .

Ex Output:
fragment


Ex Input:
 The significance of the early clinical features was not fully appreciated and the diagnosis considered only when stricture of the oesophagus became evident .

Ex Output:

oesophagus