Hmm, I'd think so too. Looks like the source dataset [1] has it wrong :(
This is how it shows up (CSV format):
2230984,Buffalo Chicken Pizza!,"[""1 (9 3/4 ounce) canswanson premium white chunk chicken breast in water, drained"", ""2 tablespoons butter, melted"", ""1 (10 ounce) packageprepared thin pizza crust (12-inch)"", ""12 of a green pepper, thinly sliced"", ""14 cup crumbled blue cheese""]","[""Heat the oven to 425F Stir the chicken, hot sauce and butter in a medium bowl."", ""Spread the chicken mixture on the pizza crust to within 1/2-inch of the edge."", ""Top with the pepper and cheese."", ""Bake for 10 minutes or until the chicken mixture is hot and bubbling.""]",www.food.com/recipe/buffalo-chicken-pizza-394731,Recipes1M,"[""chicken"", ""butter"", ""crust"", ""green pepper"", ""blue cheese""]"
I see in the original posts github link that they have a scrubbed list as well[1]. I am not sure when that was added but it explains the 12 1/2 thing exactly.
This is how it shows up (CSV format):
2230984,Buffalo Chicken Pizza!,"[""1 (9 3/4 ounce) canswanson premium white chunk chicken breast in water, drained"", ""2 tablespoons butter, melted"", ""1 (10 ounce) packageprepared thin pizza crust (12-inch)"", ""12 of a green pepper, thinly sliced"", ""14 cup crumbled blue cheese""]","[""Heat the oven to 425F Stir the chicken, hot sauce and butter in a medium bowl."", ""Spread the chicken mixture on the pizza crust to within 1/2-inch of the edge."", ""Top with the pepper and cheese."", ""Bake for 10 minutes or until the chicken mixture is hot and bubbling.""]",www.food.com/recipe/buffalo-chicken-pizza-394731,Recipes1M,"[""chicken"", ""butter"", ""crust"", ""green pepper"", ""blue cheese""]"
I'll see if I can open a PR with the fix.
[1] https://news.ycombinator.com/item?id=25356156