Question: Use conversion, obversion, and contraposition to determine whether the following arguments are valid or invalid. For those that are invalid, name the fallacy committed.
1. All periods when interest rates are high are times when businesses tend not to expand. Therefore, all times when businesses tend to expand are periods when interest rates are low.
2. Some swimsuits are not garments intended for the water. Therefore, some garments intended for the water are not swimsuits.