It was good to see someone else scratched their head here. I did figure out the difference between using the string literal and using the dog_breed_I_want variable BUT:
If you do use a string literal in the dog exercise and follow the script from the example, the result is the whole list.
But in the example, the list stops printing at the item “knit dress.” I can’t figure out the difference. Maybe it is some small syntax thing I’m not seeing?