12253
8 - Epi - PGF2a level increased only after prolonged incubation with Pb , and this elevation was irrespective of BaP incubation duration .
 Chemical: 8 - Epi - PGF2a; Chemical: Pb; Chemical: BaP
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: 8 - Epi - PGF2a; Chemical: Pb; Chemical: BaP