War is related to Elephant. Elephant is related to Heavy. Heavy is a synonym of Deep. Deep is related to Forest. 
Rat is related to Big. Big is related to Hope. Hope is related to Charity. 
War <--RelatedTo--> Elephant <--RelatedTo--> Heavy <--Synonym--> Deep <--RelatedTo--> Forest 
Rat <--RelatedTo--> Big <--RelatedTo--> Hope <--RelatedTo--> Charity 