Complex sentence: Monomoy has no human residents, no electricity, no paved roads; today, in fact, the only reminder of Monomoy's habitation is the Monomoy Point Light, which guided ships from 1828 to 1923.
Split into simpler sentences: Monomoy has no human residents, no electricity, and no paved roads. The only extant reminder of Monomoy's habitation is the Monomoy Point Light, which guided ships from 1828 to 1923.