13574
Organic anion transporter 3 interacts selectively with lipophilic beta - lactam antibiotics .
 Chemical: beta - lactam
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: beta - lactam 
Answer:
 Chemical: beta - lactam