Lift is related to Ride. Ride is related to Passenger. Passenger is related to Helicopter. 
Join is related to Bolt. Bolt is related to Mechanism. Mechanism is related to Operator. 
Lift <--RelatedTo--> Ride <--RelatedTo--> Passenger <--RelatedTo--> Helicopter 
Join <--RelatedTo--> Bolt <--RelatedTo--> Mechanism <--RelatedTo--> Operator 