5044
Using Ki - ras - transformed 3T3 cells as a model system , we show that both RA and the ' dissociating ' retinoids inhibit anchorage - independent cell proliferation , suggesting that retinoid - induced growth inhibition may be related to AP1 transrepression .
 GENE: Ki - ras; GENE: AP1
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Ki - ras, AP1 
Answer:
 GENE: Ki - ras; GENE: AP1