Prescription is related to Drug. Drug is related to Trip. Trip is related to Adventure. 
Suffer is a type of Tend. Suffer is a synonym of Allow. Allow is a synonym of Acknowledge. Acknowledge is a synonym of Confirm. 
Prescription <--RelatedTo--> Drug <--RelatedTo--> Trip <--RelatedTo--> Adventure 
Tend <--IsA-- Suffer <--Synonym--> Allow <--Synonym--> Acknowledge <--Synonym--> Confirm 