Grab is related to Hold. Hold is a synonym of Prevail. 
Tolerate is a synonym of Endure. Endure is a synonym of Prevail. Prevail is a type of Persuade. 
Grab <--RelatedTo--> Hold <--Synonym--> Prevail 
Tolerate <--Synonym--> Endure <--Synonym--> Prevail --IsA--> Persuade 