Rentals Less than 95 Consecutive Days Prohibited. All rentals of residential structures, in whole or part, and all rentals of dwellings, in whole or part, for any period less than 95 consecutive days, in the R-5, R-7.5, R-10, R-10A, R-10B, R-15, R-20, R-30, and R-40 Districts, are prohibited.