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: Histamine enhances the depolarizing afterpotential of immunohistochemically identified vasopressin neurons in the rat supraoptic nucleus via H1-receptor activation.

Output: H1-receptor


Input: Consider Input: Correlation of high urinary Smad1 level with glomerular hyperfiltration in type 2 diabetes mellitus.

Output: Smad1


Input: Consider Input: Genetic polymorphisms in the cyclooxygenase-2 gene, use of nonsteroidal anti-inflammatory drugs, and breast cancer risk.


Output: cyclooxygenase-2