Question: who does dana date on step by step
[{'answer': 'Rich Halke', 'provenance': [{'wikipedia_id': '654745', 'title': 'Step by Step (TV series)', 'start_paragraph_id': 22, 'start_character': 29, 'end_paragraph_id': 22, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Others.\n'}]}]