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His father , a chemist and contributor to humor magazines , suggested joining the first and last syllables of his name .
 person: His; person: His father; person: a chemist; person: contributor to humor magazines; person: his
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 person: His; person: His father; person: a chemist; person: contributor to humor magazines; person: his