11677
AIMS : To establish a baseline and intraindividual fluctuations of the tumour markers CEA , CA 50 and CA 242 in patients cured from colorectal cancer , and to test the hypothesis that serum concentrations and intraindividual fluctuations do not differ from the concentrations in cancer - free individuals .
 GENE: CEA; GENE: CA 50; GENE: CA 242
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: CEA, CA 50, CA 242 
Answer:
 GENE: CEA; GENE: CA 50; GENE: CA 242