Length is a type of Size. Length is related to Measure. Measure is related to Deep. Deep is similar to Wide. 
Form is a synonym of Strain. Strain is a synonym of Tune. Tune is related to Song. Song is related to Art. 
Size <--IsA-- Length <--RelatedTo--> Measure <--RelatedTo--> Deep <--SimilarTo--> Wide 
Form <--Synonym--> Strain <--Synonym--> Tune <--RelatedTo--> Song <--RelatedTo--> Art 