4210
sam , who formerly was a sportsman , and in his apprenticeship used to frequent barnet races , keeps a high chaise , with a brace of seasoned geldings .
 member collection: brace, geldings
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  brace, geldings 
Answer:
 member collection: brace, geldings