f={
'digi'=>lambda{|s|s=~/nyo\W{0,3}$/},
'petit'=>lambda{|s|s=~/nyu\W{0,3}$/},
'rabi'=>lambda{|s|s=~/\w/},
'gema'=>lambda{|s|s=~/gema\W{0,3}$/},
'piyo'=>lambda{|s|s=~/pyo\W{0,3}$/},
}
f.default=lambda{|s|nil}
$<.each{|e|
a=e.chomp.split(' ',2)
puts f[a[0]][a[1].downcase] ? 'CORRECT (maybe)' : 'WRONG!'
}