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: An analysis of skeletal development in osteoblast- and chondrocyte-specific Runx2 knockout mice.
Example Output: Runx2

Example Input: Isoform-specific inhibition of L-type calcium channels by dihydropyridines is independent of isoform-specific gating properties.
Example Output: L-type calcium channels

Example Input: Regulation of gluconeogenesis by Kruppel-like factor 15.
Example Output:
Kruppel-like