→ skos:prefLabel → "Уровень производительности функции"@ru, "Level of Useful Function Performance"@en
→ od:SouchkovDefinition → "The ratio between the actual and required values of the function parameter. If the actual value is higher than the required value the level is excessive. If the actual value is lower than the required value, the level is insufficient. If the actual value is equal to the required value, the level is normal."@en