Piece is related to Grain. Grain is related to Animal. Animal is related to Species. Oak is a type of Species. 
Steady is the opposite of Slip. Slip is related to Clothing. you are likely to find Clothing in/at/on Floor. 
Piece <--RelatedTo--> Grain <--RelatedTo--> Animal <--RelatedTo--> Species <--IsA-- Oak 
Steady <--Antonym--> Slip <--RelatedTo--> Clothing --AtLocation--> Floor 