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.

Example Input:  Positive and negative regulation of granulopoiesis by endogenous RARalpha .
Example Output: endogenous RARalpha

Example Input:  No clear correlation could be established between the level of glucocorticoid receptor and the in vitro action of steroids in normal and neoplastic lymphoid tissue .
Example Output: glucocorticoid receptor

Example Input:  This sequence - specific binding is probably mediated by a highly conserved sequence motif , ATTTGCAT , present in all three transcriptional elements .
Example Output:
transcriptional elements