Implication is a synonym of Significance. Significance is related to Important. Important is related to Famous. Famous is related to Statue. 
Sustainable is derived from Sustain. Sustain is a synonym of Hold. Hold is related to Value. Value is related to Money. 
Implication <--Synonym--> Significance <--RelatedTo--> Important <--RelatedTo--> Famous <--RelatedTo--> Statue 
Sustainable --DerivedFrom--> Sustain <--Synonym--> Hold <--RelatedTo--> Value <--RelatedTo--> Money 