{
 "A":{"N"},
 "B":{"D"},
 "C":{"E"},
 "D":{},
 "E":{"B", "D", "T"},
 "F":{},
 "G":{"C", "K"},
 "H":{"G"},
 "I":{"E"},
 "J":{"N", "S"},
 "K":{"M"},
 "L":{"S"},
 "M":{},
 "N":{"B", "C", "T"},
 "O":{"T"},
 "P":{"F"},
 "Q":{"G", "L"},
 "R":{"T"},
 "S":{},
 "T":{"P"}
 }
