91431
Some studies suggested that they were semi-aquatic , and some even suggested a fairly aquatic lifestyle , but a recent study based on a quantitative inference model suggested that both " Clepsydrops " and " Ophiacodon " were terrestrial .
 person: Ophiacodon
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: Ophiacodon 
Answer:
 person: Ophiacodon