Load is a synonym of Cargo. you are likely to find Cargo in/at/on Boat. Boat is related to Big. Big is related to Forest. 
Effect is related to Weight. Weight is related to Lead. Lead is related to Direction. 
Load <--Synonym--> Cargo --AtLocation--> Boat <--RelatedTo--> Big <--RelatedTo--> Forest 
Effect <--RelatedTo--> Weight <--RelatedTo--> Lead <--RelatedTo--> Direction 