Simplify the following text for a Grade 5 native English-speaking person.
Original: As such both Atropine and deadly nightshade derive names from Atropos , one of the three Fates who , according to Greek mythology , chose how a person was to die .
Simplified: The substance derives its name from Atropos , one of the three Fates . In Greek mythology , the Fates chose how a person was to die .