Mathematics is related to Classroom. you are likely to find Poet in/at/on Classroom. Poet is related to Literature. Literature can be used for Teaching. 
Cultural is related to Art. Genre is a type of Art. 
Mathematics <--RelatedTo--> Classroom <--AtLocation-- Poet <--RelatedTo--> Literature --UsedFor--> Teaching 
Cultural <--RelatedTo--> Art <--IsA-- Genre 