Question: who plays grace's dad on will and grace
[{'answer': 'Alan Arkin and Robert Klein', 'provenance': [{'wikipedia_id': '2017818', 'title': 'Supporting characters on Will & Grace', 'start_paragraph_id': 7, 'start_character': 52, 'end_paragraph_id': 7, 'end_character': 79, 'bleu_score': 1.0, 'section': "Section::::Supporting characters.:Family members.:Grace's family.\n"}]}, {'provenance': [{'wikipedia_id': '2017818', 'title': 'Supporting characters on Will & Grace', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 2822, 'bleu_score': 0.544543769042807, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1817159164952099169}, 'section': "Section::::Supporting characters.:Family members.:Grace's family.\n"}]}]