4940
Tin 's low melting point of and copper 's relatively moderate melting point of placed them within the capabilities of the Neolithic pottery kilns , which date back to 6000 " BC and were able to produce temperatures greater than .
 None
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:  
Answer:
 None