Write a python function called load_records that given a filename as input, opens the file and reads in the data. Each data record should be represented as a tuple of strings. The function should return two objects: A dictionary mapping zip codes to lists of such tuples and a dictionary mapping cities to sets of zip codes.

Larry sent an email to andy. andy didn't open larry's email but still understood what the message was. how did andy determine the message without opening the email?

Kyle, a receptionist for a building supply company, recently won an award for saving his company money on their phone system. after being presented with kyle's research, the company changed the way in which it made long-distance phone calls and cut their expenses in this area by 75 percent. the new system the kyle's company most likely adopted was wired communications switching stations voip hdtv

How can a user delete a drawing object