Pat is a synonym of Tap. Tap can be used for Water. you are likely to find Water in/at/on Coffee. you are likely to find Coffee in/at/on Airport. 
Enroll is related to Join. Join is related to Bolt. Bolt is related to Construction. Construction is related to Window. 
Pat <--Synonym--> Tap --UsedFor--> Water --AtLocation--> Coffee --AtLocation--> Airport 
Enroll <--RelatedTo--> Join <--RelatedTo--> Bolt <--RelatedTo--> Construction <--RelatedTo--> Window 