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:  Similar tissue - specific patterns are observed with a fusion between the caufliflower mosaic virus 35S RNA promotor and the GUS gene .
Example Output: GUS gene

Example Input:  Nuclear transcription assays confirmed that cys - 3 + was under sulfur - regulated transcriptional control and that cys - 3 + transcription was constitutive in sulfur controller ( scon ) - negative regulator mutants .
Example Output: sulfur controller

Example Input:  Relation between circulating immune complexes and serum ferritin in hemosiderosis of different etiologies
Example Output:
serum ferritin