Question: Which big box store that surrounds Westgate Mall has 78 supermarkets in New Hampshire, Massachusetts, and Maine?
Sentence (from "DeMoulas Market Basket"): DeMoulas Super Markets, Inc., under the trade name Market Basket, is a chain of 78 supermarkets in New Hampshire, Massachusetts, and Maine in the United States, with headquarters in Tewksbury, Massachusetts.
Relevant evidence: Yes