Enterprise is related to Board. Board is related to Construction. Construction is related to Industry. Industry is a synonym of Fishing. 
Plain is the opposite of Mountain. Mountain is related to Top. Top is a type of Region. Outside is a type of Region. 
Enterprise <--RelatedTo--> Board <--RelatedTo--> Construction <--RelatedTo--> Industry <--Synonym--> Fishing 
Plain <--Antonym--> Mountain <--RelatedTo--> Top --IsA--> Region <--IsA-- Outside 