Premise: Bring along an extra bag to hold your purchases; compare prices at home to make sure you find actual bargains; find out beforehand the names of local authorized dealers, especially if you want to buy high-priced electronic equipment and wish to reduce the risk of purchasing counterfeit merchandise; and give yourself plenty of time to shop so you can compare prices.

Hypothesis: There is a risk of purchasing conterfeit merchandise from dealers.
Relation: entailment