5629
a device for controlling the swinging of the boom of a sailboat comprises a line fixed at its opposite ends to opposite gunwales of the boat and passing intermediate its ends about a sheave carried by the boom .
 component whole: boom, sailboat
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:  boom, sailboat 
Answer:
 component whole: boom, sailboat