Measurement is related to Long. Long is a synonym of Tall. Tall is related to Big. 
Annual is a type of Plant. Plant is a different concept from Vegetable. Vegetable is part of Herb. Herb is a synonym of Weed. 
Measurement <--RelatedTo--> Long <--Synonym--> Tall <--RelatedTo--> Big 
Annual --IsA--> Plant <--DistinctFrom--> Vegetable --PartOf--> Herb <--Synonym--> Weed 