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 quantitative analysis showed that erythroid precursor cells were newly produced from the immature myeloid cells by cultivation with IL - 3 .

Output: IL - 3

Input: Consider Input: The relative volume of the tubulointerstitium was measured by an image analyzer ; deposition of collagen types III and IV and monocyte / macrophage infiltration were histologically examined using specific antibodies .

Output: specific antibodies

Input: Consider Input: The number of binding sites was not significantly modified .
Output: binding sites