350649
A 400,000-year old palaeolithic flint axe factory was found by W.G. Smith in 1878 on the south side of the common and in market gardens on the north side of the common .
 W.G. Smith
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 W.G. Smith