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:  Human epidermal growth factor ( EGF ) , a naturally occurring protein , has been implicated in the protection of gastrointestinal mucosal integrity .

Output: epidermal growth factor


Input: Consider Input:  As much thrombin was formed during cardiopulmonary bypass ( measured by the prothrombin activation fragment F1 + 2 and thrombin - antithrombin complexes ) as in normal patients , showing that factor XII was not necessary for thrombin generation .

Output: factor XII


Input: Consider Input:  The hematopoietic form of PTPN6 transcript is initiated at a downstream promoter separated by 7 kb from the first .


Output: PTPN6 transcript