Question: what were the main types of glass first made
[{'answer': 'colored glass ingots', 'provenance': [{'wikipedia_id': '26586160', 'title': 'History of glass', 'start_paragraph_id': 6, 'start_character': 199, 'end_paragraph_id': 6, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'answer': 'vessels', 'provenance': [{'wikipedia_id': '26586160', 'title': 'History of glass', 'start_paragraph_id': 3, 'start_character': 213, 'end_paragraph_id': 3, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'beads', 'provenance': [{'wikipedia_id': '26586160', 'title': 'History of glass', 'start_paragraph_id': 1, 'start_character': 359, 'end_paragraph_id': 1, 'end_character': 364, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26586160', 'title': 'History of glass', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 709, 'bleu_score': 0.8638593278841261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12139434166575896459}, 'section': 'Section::::Origins.\n'}]}]