Egg is related to Lemon. Lemon is related to Taste. Taste is related to Rice. Rice is related to Substance. 
Promising is a synonym of Encouraging. Encouraging is derived from Encourage. Encourage can cause/lead to Hope. Hope is related to Democratic. 
Egg <--RelatedTo--> Lemon <--RelatedTo--> Taste <--RelatedTo--> Rice <--RelatedTo--> Substance 
Promising <--Synonym--> Encouraging --DerivedFrom--> Encourage --Causes--> Hope <--RelatedTo--> Democratic 