49640
It is constrained by the Pontic Mountains to the south , Caucasus Mountains to the east , Crimean Mountains to the north , Strandzha to the southwest , Balkan Mountains to the west , Dobrogea Plateau to the northwest , and features a wide shelf to the northwest .
 location: Pontic Mountains; location: Caucasus Mountains; location: Crimean Mountains; location: Strandzha; location: Balkan Mountains; location: Dobrogea Plateau
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: Pontic Mountains, Caucasus Mountains, Crimean Mountains, Strandzha, Balkan Mountains, Dobrogea Plateau 
Answer:
 location: Pontic Mountains; location: Caucasus Mountains; location: Crimean Mountains; location: Strandzha; location: Balkan Mountains; location: Dobrogea Plateau