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

Input: Consider Input:  Sequence analysis revealed 100 % homology of all RA - derived PTEN fragments to those from normal SF as well as to the published GenBank sequence ( accession number U93051 ) .

Output: PTEN fragments


Input: Consider Input:  To assess the safety of the angiotensin converting enzyme inhibitor enalapril a multicenter , open , randomized , prazosin - controlled trial was designed comparing the incidence and severity of symptomatic hypotension on the first day of treatment .

Output: angiotensin converting enzyme


Input: Consider Input:  By computed homology search , we noticed significant similarities between US3 PK and p21 - activated kinase ( PAK ) , which is activated by the Cdc42 or Rac .


Output: US3 PK