Enhanced output arises when learners grammaticalize their output either through the use of more advanced interlanguage forms or of target language forms.

The solution of the problem how to denicotinize without destroying flavour is extraordinarily difficult and appears to be only partially solved.

My Husband is a Barbar / His Washbals are admir'd, / And I have got a Bason. / Where he Ladders whilst he's tyr'd: / Thus a Youthful Bedfellow vigorous and strong, / Has made an old Woman grow young.

MTV, you pornographer, you segregationist, you imperialist, you coarsener of culture, you aborter of attention spans.