3526
Minocycline is a second - generation , semi - synthetic tetracycline that has been in use in therapy for over 30 years for its antibiotic properties against both Gram - positive and Gram - negative bacteria .
 Chemical: Minocycline; Chemical: tetracycline
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: Minocycline; Chemical: tetracycline