Streak is related to Flash. Flash is related to Passing. Passing is related to Mention. Mention is related to Speak. 
Bus is related to Passenger. Passenger is related to Helicopter. Helicopter can be used for Transport. Bucket is a type of Transport. 
Streak <--RelatedTo--> Flash <--RelatedTo--> Passing <--RelatedTo--> Mention <--RelatedTo--> Speak 
Bus <--RelatedTo--> Passenger <--RelatedTo--> Helicopter --UsedFor--> Transport <--IsA-- Bucket 