For one word 'mae' in nouns and three words 'kuru ', 'koeru' and 'tukuru' in verbs, CV-EM was superior to CV-EM2.
for four words 'atama ', 'kaku n', 'te' and 'doujitsu' in nouns and four words 'ukeru', 'umareru', 'toru' and 'mamortu' in verbs, CV-EM2 was better to CV-EM.