5418
Mutation of Ser - 7 and nearby residues strongly reduced the affinity of rat DAT for the cocaine analog ( - ) - 2 beta - carbomethoxy - 3 beta - ( 4 - fluorophenyl ) tropane ( CFT ) , whereas in rat striatal tissue , conditions that promote DAT phosphorylation caused increased CFT affinity .
 Chemical: Ser; Chemical: cocaine; Chemical: ( - ) - 2 beta - carbomethoxy - 3 beta - ( 4 - fluorophenyl ) tropane; Chemical: CFT; Chemical: CFT
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Ser; Chemical: cocaine; Chemical: ( - ) - 2 beta - carbomethoxy - 3 beta - ( 4 - fluorophenyl ) tropane; Chemical: CFT; Chemical: CFT