Machine can be used for Steer. Machine is related to Clock. Clock is related to Hour. Hour is related to Time. 
Cabin is related to Captain. Captain is related to Role. 
Steer <--UsedFor-- Machine <--RelatedTo--> Clock <--RelatedTo--> Hour <--RelatedTo--> Time 
Cabin <--RelatedTo--> Captain <--RelatedTo--> Role 