2541
CONCLUSIONS : Reassuringly , penicillins , erythromycins , and cephalosporins , although used commonly by pregnant women , were not associated with many birth defects .
 Chemical: penicillins; Chemical: erythromycins; Chemical: cephalosporins; Disease: birth defects
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: penicillins, erythromycins, cephalosporins, birth defects 
Answer:
 Chemical: penicillins; Chemical: erythromycins; Chemical: cephalosporins; Disease: birth defects