Complex sentence: As the brothers have not even started, this places them under a certain amount of pressure-deciding to take inspiration from George Gershwin, they lock themselves in a hotel room and attempt to get the book both started and finished.
Split into simpler sentences: As the brothers have not even started, this places them under a certain amount of pressure. Deciding to take inspiration from George Gershwin, they lock themselves in a hotel room and attempt to get the book both started and finished.