Ignore is the opposite of Notice. Notice is a type of Review. Review is related to Trial. Trial is a type of Book. 
Shell is a synonym of Beat. Beat is related to Seat. Seat is related to Airline. Airline is a type of Line. 
Ignore <--Antonym--> Notice --IsA--> Review <--RelatedTo--> Trial --IsA--> Book 
Shell <--Synonym--> Beat <--RelatedTo--> Seat <--RelatedTo--> Airline --IsA--> Line 