before_sent:  On several tasks , we show that PET outperforms both supervised training and unsupervised approaches in low-resource settings by a large margin.
before_sent_with_intent: <clarity>  On several tasks , we show that PET outperforms both supervised training and unsupervised approaches in low-resource settings by a large margin.
after_sent:  For several tasks and languages, PET outperforms both supervised training and unsupervised approaches in low-resource settings by a large margin.