18476
The highest ( 1 - butanol ) - IL interactions of the ILs considered in this work were found for [ Im10 . 1 ] ( + ) [ tcb ] ( - ) ; thus , [ Im10 . 1 ] ( + ) [ tcb ] ( - ) showed the highest affinity for 1 - butanol in a binary mixture .
 Chemical: 1 - butanol; Chemical: 1 - butanol
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: 1 - butanol; Chemical: 1 - butanol