Question: river that joins the severn near chepstow crossword
[{'answer': 'River Wye', 'provenance': [{'wikipedia_id': '50807', 'title': 'River Severn', 'start_paragraph_id': 2, 'start_character': 345, 'end_paragraph_id': 2, 'end_character': 354, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50807', 'title': 'River Severn', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 528, 'bleu_score': 0.9104501500570921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1488567121313562207}, 'section': 'Section::::Tributary rivers.\n'}]}]