Assertion: pie's crust | /r/HasProperty | sold
Facets:
Source sentences:
text: In the 1950s, after WWII, the popularity of pies rebounded in the US, especially with commercial food inventions such as instant pudding mixes, Cool Whip topping, and Jello gelatin (which could be used as fillings) ready-made crusts, which were sold frozen, and alternative crusts made with crushed potato chips.