Take the following as truth: Opening hours are as  ordinary shops and stores 8am to noon and 2 to 5pm; supermarkets, department stores, and bookshops 8:30am to 12:30pm and 2:30 to 5:30pm; boutiques 9am to 1pm and 3 to 6pm.
Then the following statement: "Regular shops open in the morning from 8am to noon, but supermarkets and bookshops open half an hour later." is true, false, or inconclusive?