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:  METHODS : Levels of sIL - 2R were measured simultaneously in plasma and pleural fluid in 111 patients with pleural effusions of unknown causes .

Output: sIL - 2R


Input: Consider Input:  Heterotrimeric guanine nucleotide - binding proteins ( G - proteins ) function as signal transducers for a variety of hormone - coupled enzyme and ion transport systems in eukaryotic cells .

Output: G - proteins


Input: Consider Input:  There is little similarity among the sequences upstream from the CAP site of the Spec2 genes except the TATA consensus sequence and a repeating trinucleotide , AAC .


Output: Spec2 genes