Term: spring mattress: a mattress containing springs in a rigid frame
Candidate hypernym: object: a tangible and visible entity; an entity that can cast a shadow → 1
Candidate hypernym: extortion: unjust exaction (as by the misuse of authority) → 0
Candidate hypernym: instrument of execution: an instrument designed and used to take the life of a condemned person → 0
Candidate hypernym: grapnel: a light anchor for small boats → 0
Candidate hypernym: march: the month following February and preceding April → 0
Candidate hypernym: notch: a small cut → 0
Candidate hypernym: variable: a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity → 0
Candidate hypernym: face: the front of the human head from the forehead to the chin and ear to ear → 0
Candidate hypernym: trait: a distinguishing feature of your personal nature → 0
Candidate hypernym: athapaskan: a member of any of the North American Indian groups speaking an Athapaskan language and living in the subarctic regions of western Canada and central Alaska → 0
Candidate hypernym: earlobe: the fleshy pendulous part of the external human ear → 0