Original sentence: A psychic (; from the Greek ψυχικός psychikos—"of the mind, mental") is a person who claims to have an ability to perceive information hidden from the normal senses through extrasensory perception (ESP), or who is said by others to have such abilities
Edited sentence: A psychic (; from the Greek ψυχικός psychikos—"of the mind, mental") is a person who has an ability to perceive information hidden from the normal senses through extrasensory perception (ESP)