24870
Phorbol - 12 - myristate - 13 - acetate ( TPA ) was used as positive control and 0 . 5 % dimethyl sulfoxide ( DMSO ) as solvent control .
 Chemical: Phorbol - 12 - myristate - 13 - acetate; Chemical: TPA; Chemical: dimethyl sulfoxide; Chemical: DMSO
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: Phorbol - 12 - myristate - 13 - acetate; Chemical: TPA; Chemical: dimethyl sulfoxide; Chemical: DMSO