32646
Sources of carbon nucleophiles , e.g. , Grignard reagents and organolithium compounds , add readily to the carbonyl .
 person: Grignard
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Grignard 
Answer:
 person: Grignard