Post is related to Vertical. Vertical is related to Column. Column is related to Marble. Marble is a type of Rock. 
Call is a type of Indicate. Indicate is a synonym of Write. 
Post <--RelatedTo--> Vertical <--RelatedTo--> Column <--RelatedTo--> Marble --IsA--> Rock 
Call --IsA--> Indicate <--Synonym--> Write 