1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
word-1 tr1-1 tr1-2 tr1-3 tr1-4 word-2 tr2-1 tr2-2 tr2-3 tr2-4 word-3 tr3-1 tr3-2 tr3-3 tr3-4 word-4 tr4-1 tr4-2 tr4-3 tr4-4