#!/usr/bin/env ruby

require 'zipf'

def mkrf src, tgt
  s = src.gsub /\[X,[1-9]\]/, "NX"
  t = tgt.gsub /\[X,([1-9])\]/,'N\1'
  return "R:X:#{s.gsub(" ","_")}:#{t.gsub(" ","_")}"
end

def mkrbf s, t
  s = String.new s
  if t == "S"
    s.gsub! /\[X,[1-9]\]/, "X"
  else
    s.gsub! /\[X,([1-9])\]/, 'X\1' 
  end
  s.reverse!
  s += " >r<"
  s.reverse!
  s += " </r>"
  a = []
  ngrams(s, 2, true) { |ng|
    a << "RB#{t}:#{ng.join "_"}"
  }
  return a
end

h = {}
while line = STDIN.gets
  _,src,tgt,_,_ = splitpipe line.strip
  src.strip!
  tgt.strip!
  mkrbf(src, "S").each { |f|
    h[f] = true
  }
  mkrbf(tgt, "T").each { |f|
    h[f] = true
  }
  h [mkrf(src, tgt)] = true
end

h.keys.each { |f| puts f }