Connection is related to Course. Course is related to Obstacle. 
Fold is a synonym of Yield. Yield is related to Crop. Crop is related to Vegetable. Vegetable is a type of Herb. 
Connection <--RelatedTo--> Course <--RelatedTo--> Obstacle 
Fold <--Synonym--> Yield <--RelatedTo--> Crop <--RelatedTo--> Vegetable --IsA--> Herb 