Stretch is related to Wide. Wide is the opposite of Short. Shorts is a form of Short. 
Remark is related to Casual. Casual is a synonym of Unexpected. Unexpected is a synonym of Random. 
Stretch <--RelatedTo--> Wide <--Antonym--> Short <--FormOf-- Shorts 
Remark <--RelatedTo--> Casual <--Synonym--> Unexpected <--Synonym--> Random 