Strong is similar to Intense. Intense is related to Bright. Bright is a different concept from Dark. Dark is a synonym of Deep. 
Need is related to Similar. Similar is related to Eat. Food can be used for Eat. 
Strong <--SimilarTo--> Intense <--RelatedTo--> Bright <--DistinctFrom--> Dark <--Synonym--> Deep 
Need <--RelatedTo--> Similar <--RelatedTo--> Eat <--UsedFor-- Food 