Pack is a type of Collection. Collection is related to Fire. Fire is related to Alarm. Alarm is related to Shock. 
Passage is a type of Structure. Passage can be used for Read. Read is a type of Predict. 
Pack --IsA--> Collection <--RelatedTo--> Fire <--RelatedTo--> Alarm <--RelatedTo--> Shock 
Structure <--IsA-- Passage --UsedFor--> Read --IsA--> Predict 