1545
BACKGROUND : More than 3 decades after Jones and Smith ( 1973 ) reported on the devastation caused by alcohol exposure on fetal development , the rates of heavy drinking during pregnancy remain relatively unchanged .
 Chemical: alcohol
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: alcohol 
Answer:
 Chemical: alcohol