14127
Synthesis , pharmacological evaluation and QSAR modeling of mono - substituted 4 - phenylpiperidines and 4 - phenylpiperazines .
 Chemical: 4 - phenylpiperidines; Chemical: 4 - phenylpiperazines
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: 4 - phenylpiperidines; Chemical: 4 - phenylpiperazines