@h = {
  "digi" => /nyo[^a-zA-Z0-9]{0,3}$/i,
  "petit"=> /nyu[^a-zA-Z0-9]{0,3}\z/i,
  "rabi" => /[a-zA-Z0-9]/,
  "gema" => /gema[^a-zA-Z0-9]{0,3}\z/i,
  "piyo" => /pyo[^a-zA-Z0-9]{0,3}\z/i
}
s = nil
def ok(s)
  return false if s.length < 1 || s[0] == " "
  a = s.split(" ")
  @h[a[0]] && a.length > 1 && a[1..-1].join(" ").match(@h[a[0]])
end
while s = gets do
  puts ok(s.chomp) ? "CORRECT (maybe)" : "WRONG!"
end