Crop is related to Wood. Wood is related to Texture. Texture is related to Course. 
Back is a synonym of Endorse. Endorse is a synonym of Second. Second is related to Street. 
Crop <--RelatedTo--> Wood <--RelatedTo--> Texture <--RelatedTo--> Course 
Back <--Synonym--> Endorse <--Synonym--> Second <--RelatedTo--> Street 