Original sentence: Stephen Pinker speculated that Sigmund Freud's theories about the Oedipal complex to have been the result of his being raised by a wet-nurse, rather than his mother because this dissociation from his mother would have prevented the Westermarck effect from taking hold
Edited sentence: Stephen Pinker speculated that Sigmund Freud's theories about the Oedipal complex were the result of his being raised by a wet-nurse, rather than his mother because this dissociation from his mother would have prevented the Westermarck effect from taking hold