Page is related to Product. Product is related to Card. 
one thing you do when you Work is Problem. Problem is related to Mistake. Mistake is related to Answer. Answer is the opposite of Ask. 
Page <--RelatedTo--> Product <--RelatedTo--> Card 
Work --HasSubevent--> Problem <--RelatedTo--> Mistake <--RelatedTo--> Answer <--Antonym--> Ask 