"Andy" => maps to => ["Anthony", "Chloe", "Joe", "May", "Porter"] "Anthony" => maps to => ["Andy", "Evan"] "Chloe" => maps to => ["Andy", "May", "Neel", "Raymond"] "Evan" => maps to => ["Anthony", "May"] "Joanie" => maps to => ["Joe", "Raymond"] "Joe" => maps to => ["Andy", "Joanie"] "May" => maps to => ["Andy", "Chloe", "Evan"] "Neel" => maps to => ["Chloe"] "Porter" => maps to => ["Andy"] "Raymond" => maps to => ["Chloe", "Joanie"]