Question: backchanneling cues such as yes and uh-huh come under which stage of listening
[{'answer': 'non-lexical', 'provenance': [{'wikipedia_id': '34416580', 'title': 'Backchannel (linguistics)', 'start_paragraph_id': 12, 'start_character': 226, 'end_paragraph_id': 12, 'end_character': 237, 'bleu_score': 1.0, 'section': 'Section::::Types of backchannels.\n'}]}]