527
First , a GATA - 1 motif was found to bind nuclear factor ( s ) , presumably the GATA - 1 factor , present in K - 562 cell extracts and in living K - 562 cells .
 GENE: GATA - 1 motif; GENE: GATA - 1 factor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: GATA - 1 motif; GENE: GATA - 1 factor