1332
We then demonstrated that 1 ) GAL4 - REV - erbA alpha chimeras that contain the ' AB ' region and lack the ' E ' region activated transcription of GAL4 response elements in the presence of 8 - Br - cAMP and 2 ) the ligand - binding domain ( LBD ) contains an active transcriptional silencer .
 GENE: GAL4; GENE: REV; GENE: erbA alpha; GENE: GAL4 response elements
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: GAL4; GENE: REV; GENE: erbA alpha; GENE: GAL4 response elements