Haul is a synonym of Catch. Catch is related to Hold. Hold is related to Know. 
Toxic is related to Waste. Waste is related to Land. Landing is a form of Land. 
Haul <--Synonym--> Catch <--RelatedTo--> Hold <--RelatedTo--> Know 
Toxic <--RelatedTo--> Waste <--RelatedTo--> Land <--FormOf-- Landing 