91833
Bipedal specializations are found in " Australopithecus " fossils from 4.2 - 3.9 million years ago , although " Sahelanthropus " may have walked on two legs as early as seven million years ago .
 location: Australopithecus; location: Sahelanthropus
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: Australopithecus, Sahelanthropus 
Answer:
 location: Australopithecus; location: Sahelanthropus