5665
she used her fingertips to scrub into the bristles of the brush , getting between crevices where food can often get stuck .
 component whole: bristles, brush
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:  bristles, brush 
Answer:
 component whole: bristles, brush