Lay is related to Action. Action is related to Heal. Heal is the opposite of Harm. 
Scheme is a synonym of Way. Way is related to High. High is related to Beam. Beam is related to Long. 
Lay <--RelatedTo--> Action <--RelatedTo--> Heal <--Antonym--> Harm 
Scheme <--Synonym--> Way <--RelatedTo--> High <--RelatedTo--> Beam <--RelatedTo--> Long 