54744
If the robot chooses a velocity inside the velocity obstacle then the two robots will eventually collide , if it chooses a velocity outside the velocity obstacle , such a collision is guaranteed not to occur .
 organization: obstacle; organization: obstacle
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: obstacle, obstacle 
Answer:
 organization: obstacle; organization: obstacle