Prepare a document identifying classes and associations and an Entity Relationship diagram with multiplicities based on the scenario described below.

"Paige runs a small frozen yogurt shop. She buys several flavors of frozen yogurt mix from her yogurt supplier. She buys plastic cups in several sizes from another supplier. She buys cones from a third supplier. She counts yogurt and cones as inventory, but she treats the cups as an operating expense and doesn't track any cup inventory."