9597
Structural analysis showed that retinoids bind caseins via both hydrophilic and hydrophobic contacts with overall binding constants of K ( retinol - ) ( alpha ) ( - caseins ) = 1 . 21 ( +/- 0 . 4 ) x 10 ( 5 ) M ( - 1 ) and K ( retinol - ) ( beta ) ( - caseins ) = 1 . 11 ( +/- 0 . 5 ) x 10 ( 5 ) M ( - 1 ) and K ( retinoic acid - ) ( alpha ) ( - caseins ) = 6 . 2 ( +/- 0 . 6 ) x 10 ( 4 ) M ( - 1 ) and K ( retinoic acid - ) ( beta ) ( - caseins ) = 6 . 3 ( +/- 0 . 6 ) x 10 ( 4 ) M ( - 1 ) .
 Chemical: retinoids; Chemical: retinol; Chemical: retinol; Chemical: retinoic acid; Chemical: retinoic acid
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: retinoids; Chemical: retinol; Chemical: retinol; Chemical: retinoic acid; Chemical: retinoic acid