Simplify the following text for a Grade 6 native English-speaking person.
Original: Edmonton Green railway station is a station in the London Borough of Enfield in north east London on the White hart lane branch of the Lea Valley Lines .
Simplified: Edmonton Green railway station is in the London Borough of Enfield in north east London , and is in Travelcard Zone 4 . It is on the Seven Sisters branch of the Lea Valley Lines .