In rewritten code: https://zverok.github.io/advent2021/day11.html — I'd say it is relatively probable (grep for this line):

   if_(stories == 1, ()=> chance(2/3, ()=> [1, "Pizza Hut"]))

E.g. with 1-storey building of this type, chance is good! OTOH, the building of this type will 1 story with probability 1/4: https://github.com/zverok/grok-shan-shui/blob/main/grok.html...

...and how many of these buildings will be in the picture is more complicated. Anyway, just opened the online picture and scrolled it for a few iterations and met it almost immediately https://www.dropbox.com/s/mr1f0gpjr5zvrsq/pizza_hut.jpg?dl=0