In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.

Input: Consider Input: The Hsp90-specific inhibitor geldanamycin selectively disrupts kinase-mediated signaling events of T-lymphocyte activation.

Output: geldanamycin


Input: Consider Input: Effect of chronic renal failure on arginase and argininosuccinate synthetase expression.

Output: argininosuccinate


Input: Consider Input: Activity-dependent cleavage of brain glutamic acid decarboxylase 65 by calpain.


Output: glutamic acid