Crowd is related to Dense. Dense is the opposite of Bright. Bright is related to Strong. Strong is related to Spirit. 
Stereotype is related to Class. Class is related to Freshman. 
Crowd <--RelatedTo--> Dense <--Antonym--> Bright <--RelatedTo--> Strong <--RelatedTo--> Spirit 
Stereotype <--RelatedTo--> Class <--RelatedTo--> Freshman 