Question: what kind of bond is formed in pure lithium
[{'answer': 'carbon - carbon', 'provenance': [{'wikipedia_id': '17561', 'title': 'Lithium', 'start_paragraph_id': 94, 'start_character': 393, 'end_paragraph_id': 94, 'end_character': 412, 'bleu_score': 1.0, 'section': 'Section::::Applications.:Other chemical and industrial uses.:Organic and polymer chemistry.\n'}]}, {'provenance': [{'wikipedia_id': '17561', 'title': 'Lithium', 'start_paragraph_id': 94, 'start_character': 0, 'end_paragraph_id': 94, 'end_character': 487, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13600676439610929701}, 'section': 'Section::::Applications.:Other chemical and industrial uses.:Organic and polymer chemistry.\n'}]}]