52769
Rosetta " observations revealed that the surface of Lutetia is covered with a regolith made of loosely aggregated dust particles 50 – 100 " μm in size .
 location: Lutetia
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: Lutetia 
Answer:
 location: Lutetia