X <isMeansFor> Y. An object or process X mainly used to perform a process Y. See also <usedAs>. E.g. "curry paste grinding" <performedWithInstrument> "curry paste grinding machine"; "weapon" <instrumentFor> "killing"; "fishing pole" <instrumentFor> "fishing"; "alcohol" <instrumentFor> "cleaning"; Ploughs <isMeansFor> Ploughing ;but NOT "knives" <instrumentFor> "felling" (because knives are not primarily used for cutting down trees);

Is means for