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:  The differential usage of this regulatory sequence motif is thought to be mediated by different species of octamer binding proteins .

Output: octamer binding proteins


Input: Consider Input:  Inhaled NO also blocked the activities of reactive oxygen species and nuclear factor - kappaB binding to DNA in lavage cells and in alveolar macrophages .

Output: nuclear factor


Input: Consider Input:  Most EZH2 ( + ) DN and DP thymocytes were dividing , while DN BMI - 1 ( + ) / EZH2 ( - ) thymocytes were resting and proliferation was occasionally noted in DN BMI - 1 ( + ) / EZH2 ( + ) cells .


Output: BMI - 1