Detailed Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Q: This item loses air overnight. Must be inflated daily if not nightly. If you return this item the store won't take it back, you must ship to the maker at your expense. Or you must cut the air pump out because they don't trust you not to keep using it, like we have to trust them on their quality.
A:
Negative