Behavior is related to Habit. Habit is the opposite of Time. 
Reminder is a type of Album. Wall is a type of Album. Wall is related to Art. Art is related to Stuff. 
Behavior <--RelatedTo--> Habit <--Antonym--> Time 
Reminder --IsA--> Album <--IsA-- Wall <--RelatedTo--> Art <--RelatedTo--> Stuff 