Secret can Bug. Bug is related to Fly. Fly is a synonym of Float. 
Ought is related to Must. Must is related to Duty. Duty is related to Alcohol. 
Secret --CapableOf--> Bug <--RelatedTo--> Fly <--Synonym--> Float 
Ought <--RelatedTo--> Must <--RelatedTo--> Duty <--RelatedTo--> Alcohol 