2478
the locking mechanism for a gear consists of a collar ( or dog collar ) on the shaft which is able to slide sideways so that teeth ( or dogs ) on its inner surface bridge two circular rings with teeth on their outer circumference : one attached to the gear , one to the shaft .
 component whole: gear, collar
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 component whole: gear, collar