Question: what are the basic features of ooo base
[{'answer': 'a spreadsheet ( Calc )', 'provenance': [{'wikipedia_id': '68227', 'title': 'OpenOffice.org', 'start_paragraph_id': 2, 'start_character': 47, 'end_paragraph_id': 2, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'a database management application ( Base )'}, {'answer': 'a formula editor ( Math )'}, {'answer': 'a word processor ( Writer )'}, {'answer': 'a drawing application ( Draw )'}, {'answer': 'a presentation application ( Impress )'}, {'provenance': [{'wikipedia_id': '68227', 'title': 'OpenOffice.org', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 439, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4310969654696937174}, 'section': 'Section::::Abstract.'}]}]