19045
PFOS and PFOA were dissolved in methanol ( carrier vehicle ) whose concentration never exceeded 0 . 01 % of total tank volume .
 Chemical: PFOS; Chemical: PFOA; Chemical: methanol
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: PFOS; Chemical: PFOA; Chemical: methanol