24247
The first seagoing vessel designed to launch the self-propelled Whitehead torpedo was the 33-ton in 1876 .
 person: Whitehead
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: Whitehead 
Answer:
 person: Whitehead