75656
At very high temperatures , as in the environment of a black hole or neutron star , high energy photon interactions with nuclei or even with other photons , can create an electron-positron plasma .
 astronomical object: neutron star
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: neutron star 
Answer:
 astronomical object: neutron star