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Results presented here show that the differential sensitivities of BS and BR lines to beta - CCM can be extended to diazepam , picrotoxin , and pentylenetetrazol , suggesting a genetic selection of a general sensitivity and resistance to several ligands of the GABA ( A ) receptor .
 Chemical: beta - CCM; Chemical: diazepam; Chemical: picrotoxin; Chemical: pentylenetetrazol; Chemical: GABA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: beta - CCM, diazepam, picrotoxin, pentylenetetrazol, GABA 
Answer:
 Chemical: beta - CCM; Chemical: diazepam; Chemical: picrotoxin; Chemical: pentylenetetrazol; Chemical: GABA