Whenever Joe' s car is vacuumed, the employees of K& L Auto vacuum it; they are the only people who ever vacuum Joe' s car  If the employees of K & L Auto vacuumed Joe' s car, then Joe took his car to K & L Auto to be fixed  Joe' s car was recently vacuumed
Ttherefore, Joe took his car to K & L Auto to be fixed
Emily's water glass is wet and it would be wet only if she drank water from it this morning. Since the only time she drinks water in the morning is when she takes her medication, Emily took her medication this morning.