Question: when do monica and chandler start dating episode
[{'answer': 'the season four finale', 'provenance': [{'wikipedia_id': '11315', 'title': 'Friends', 'start_paragraph_id': 10, 'start_character': 608, 'end_paragraph_id': 10, 'end_character': 630, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.\n'}]}, {'provenance': [{'wikipedia_id': '11315', 'title': 'Friends', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 720, 'bleu_score': 0.9161126142689551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16688056607361906949}, 'section': 'Section::::Cast and characters.\n'}]}]