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: Roles played by lymphocyte function-associated antigen-1 in the regulation of lymphocytic cholinergic activity.
Example Output: lymphocyte function-associated antigen-1

Example Input: Current and future prospects for anticoagulant therapy: inhibitors of factor Xa and factor IIa.
Example Output: factor Xa

Example Input: Striatal dopamine, dopamine transporter, and vesicular monoamine transporter in chronic cocaine users.
Example Output:
vesicular monoamine transporter