82455
The plant genus Mertensia from the family Boraginaceae is named after him , while the ctenophore genus Mertensia is named after his son Karl Heinrich Mertens ( 1796-1830 ) .
 person: Karl Heinrich Mertens
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: Karl Heinrich Mertens 
Answer:
 person: Karl Heinrich Mertens