36990
The Davy lamp could also detect high levels of blackdamp ( which sinks , and collects near the floor ) by burning less brightly , while methane , another suffocating gas and explosion risk , would make the lamp burn more brightly .
 person: Davy
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: Davy 
Answer:
 person: Davy