5862
Principal metabolic pathways included hydroxylation on alkyl side chain , particularly at 3 - , omega - 1 - , and omega - carbons , and further oxidation and conjugation .
 Chemical: alkyl; Chemical: 3 - , omega - 1 - , and omega - carbons
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: alkyl; Chemical: 3 - , omega - 1 - , and omega - carbons