Complex sentence: From her research, Lovell concluded that Markham was the sole author, although Schumacher did edit the manuscript; instead, Lovell credits Antoine de Saint Exupéry, another of Markham's lovers, with being the inspiration behind Markham's clear, elegant language and storytelling style.
Split into simpler sentences: From her research, Lovell concluded that Markham was the sole author, although Schumacher edited the manuscript. Instead, Lovell credits Antoine de Saint Exupéry, another of Markham's lovers, with having inspired Markham's clear, elegant language and storytelling style.