Complex sentence: Harpo, Mister's son, falls in love with an assertive girl named Sofia, who becomes pregnant with Harpo's baby and, despite initial resistance from Mister, marries Harpo.
Split into simpler sentences: Harpo, Mister's son, falls in love with an assertive girl named Sofia. Sofia becomes pregnant with Harpo's baby and, despite initial resistance from Mister, marries Harpo.