Commercial is the opposite of Show. you are likely to find Person in/at/on Show. Person wants (to) Education. Writing can be used for Education. 
Accident is a synonym of Stroke. Stroke is related to Midnight. Midnight is related to Time. Time is related to Offer. 
Commercial <--Antonym--> Show <--AtLocation-- Person --Desires--> Education <--UsedFor-- Writing 
Accident <--Synonym--> Stroke <--RelatedTo--> Midnight <--RelatedTo--> Time <--RelatedTo--> Offer 