Complex sentence: Jerry and Elaine forget to take a number at the counter, as a result, David and Barbara Benedict, a couple on their way to the same dinner party, get ahead of them in line and purchase the last chocolate babka.
Split into simpler sentences: Jerry and Elaine forget to take a number at the counter. As a result, David and Barbara Benedict, a couple on their way to the same dinner party, get ahead of them in line and purchase the last chocolate babka.