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The period from 700,000 – 300,000 years ago is also known as the Acheulean , when " H. ergaster " ( or " erectus " ) made large stone hand axes out of flint and quartzite , at first quite rough ( Early Acheulian ) , later " retouched " by additional , more-subtle strikes at the sides of the flakes .
 location: Acheulean; location: Early Acheulian
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: Acheulean, Early Acheulian 
Answer:
 location: Acheulean; location: Early Acheulian