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.

Ex Input:
 Free protein S deficiency in acute ischemic stroke .

Ex Output:
protein S


Ex Input:
 Using gel retardation analysis , four binding sites for Rap1p have been identified within the promoter of the RAP1 gene .

Ex Output:
RAP1 gene


Ex Input:
 The majority of putative TSC2 mutations were found in sporadic rather than TSC2 - linked families .

Ex Output:

TSC2 mutations