Assertion: narrow variety | /r/HasProperty | one reason
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Source sentences:
text: Stores with smaller spaces may choose to specialize in a certain type of product and offer customers a variety of colors and styles; other stores may offer a deep assortment of products but a narrow variety—one reason why a 7-Eleven (private since 2005) might carry just one brand of canned cat food, for example, while a Kroger (NYSE: KR) likely would have the space to stock 12 brands of canned cat food, if it chose to.