Question: where are alkali metals located on the periodic table
[{'answer': 'in the s - block', 'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 1, 'start_character': 203, 'end_paragraph_id': 1, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'group 1', 'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 2, 'start_character': 685, 'end_paragraph_id': 2, 'end_character': 692, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the s - block of the periodic table of elements'}, {'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 587, 'bleu_score': 0.977897140678983, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5630009562133642387}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1004, 'bleu_score': 0.988200073497952, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5630009562133642387}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the s-block of the periodic table of elements as all alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic properties', 'The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the s-block of the periodic table of elements as all alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic properties. Indeed, the alkali metals provide the best example of group trends in properties in the periodic table, with elements exhibiting well-characterised homologous behaviour.', 'This group lies in the s-block of the periodic table of elements as all alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic properties.']}}]}]