"Andrew"    => maps to => [Arthur, Neha]
"Annabeth"  => maps to => [Percy, Piper]
"Antonio"   => maps to => [Kyle, Neha]
"Arthur"    => maps to => [Andrew, Maddie, Neha]
"Chris"     => maps to => [Maddie, Sam, Sejin]
"Frank"     => maps to => [Hazel, Leo]
"Frederick" => maps to => [Sam, Sejin]
"Hazel"     => maps to => [Frank, Leo]
"Jason"     => maps to => [Leo, Piper, Thalia]
"Kyle"      => maps to => [Antonio]
"Leo"       => maps to => [Frank, Hazel, Jason
"Maddie"    => maps to => [Arthur, Chris, Sam]
"Neha"      => maps to => [Andrew, Antonio, Arthur, Sam, Sejin]
"Nico"      => maps to => [Percy, Reyna, Will]
"Percy"     => maps to => [Annabeth, Nico, Reyna]
"Piper"     => maps to => [Annabeth, Jason]
"Reyna"     => maps to => [Nico, Percy]
"Sam"       => maps to => [Chris, Frederick, Maddie, Neha]
"Sejin"     => maps to => [Chris, Frederick, Neha]
"Thalia"    => maps to => [Jason]
"Will"      => maps to => [Nico]