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: Proteomic and metabolomic responses to connexin43 silencing in primary hepatocyte cultures.
Example Output: connexin43

Example Input: Inhibitory effects of lysine analogues on t-PA induced whole blood clot lysis.
Example Output: t-PA

Example Input: Transcription forms and remodels supercoiling domains unfolding large-scale chromatin structures.
Example Output:
supercoiling domains