sentences: comparing a property of different objects requires measuring that property for each object & mass is a property of objects ->  comparing the mass of different objects requires measuring the mass for each object  comparing the mass of different objects requires measuring the mass for each object & a balance can be used to measure the mass of objects ->  comparing the mass of different objects requires using a balance for each object  comparing the mass of different objects requires using a balance for each object & a marble is a kind of object ->  comparing the mass of different marbles requires using a balance for each marble  comparing a property of different objects requires measuring that property for each object & volume is a property of objects ->  comparing the volume of different objects requires measuring the volume for each object  comparing the volume of different objects requires measuring the volume for each object & a graduated cylinder can be used to measure the volume of objects ->  comparing the volume of different objects requires using a graduated cylinder for each object  comparing the volume of different objects requires using a graduated cylinder for each object & a marble is a kind of object ->  comparing the volume of different marbles requires using a graduated cylinder for each marble  comparing the mass of different marbles requires using a balance for each marble & comparing the volume of different marbles requires using a graduated cylinder for each marble -> comparing the mass and volumes of different marbles requires using a balance and graduated cylinder for each marble