Fare is a synonym of Travel. Push is a type of Travel. Push is related to Shove. 
Tropical is related to Palm. Palm is related to Slap. Slap is a synonym of Just. Just is a synonym of Reasonable. 
Fare <--Synonym--> Travel <--IsA-- Push <--RelatedTo--> Shove 
Tropical <--RelatedTo--> Palm <--RelatedTo--> Slap <--Synonym--> Just <--Synonym--> Reasonable 