Question: who plays nathan's mother on general hospital
[{'answer': 'Donna Mills', 'provenance': [{'wikipedia_id': '43685352', 'title': 'Nathan West (General Hospital)', 'start_paragraph_id': 4, 'start_character': 441, 'end_paragraph_id': 4, 'end_character': 452, 'bleu_score': 1.0, 'section': 'Section::::Storylines.\n'}]}, {'provenance': [{'wikipedia_id': '43685352', 'title': 'Nathan West (General Hospital)', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 1235, 'bleu_score': 0.9797361057510601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17327098110828022681}, 'section': 'Section::::Development.:Introduction (2014).\n'}]}, {'provenance': [{'wikipedia_id': '42230475', 'title': 'Madeline Reeves', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['General Hospital", portrayed by Donna Mills, who', 'Madeline Reeves (born Magda Westbourne) is a fictional character on the long-running ABC daytime soap opera "General Hospital", portrayed by Donna Mills']}}]}, {'provenance': [{'wikipedia_id': '43685352', 'title': 'Nathan West (General Hospital)', 'section': 'Section::::Storylines.\n', 'start_paragraph_id': 4, 'end_paragraph_id': 4, 'meta': {'evidence_span': ["Detective Nathan West arrives in Port Charles, and meets Maxie Jones (Kirsten Storms) when he sublets her apartment. Maxie leaves on a vacation, while Nathan settles in Port Charles. He starts investigating Dr. Silas Clay (Michael Easton) in regards to the overdose of Silas' wife, Nina Reeves (Michelle Stafford), suspecting Silas is responsible. It's later revealed that Nathan is actually Nina's brother. Nathan's mother Madeline Reeves (Donna Mills) claims that Nina has died after Silas has relinquished his rights to Nina's vast estate. Nathan is shocked when Madeline falls into the trap to catch the killer, and confesses that she drugged Nina to kill her unborn child. He arrests Madeline, and simultaneously reveals his identity. Maxie returns with her new manipulative boyfriend Levi Dunkleman (Zachary Garred), who Nathan immediately clashes with.", "Nathan's mother Madeline Reeves (Donna Mills)"]}}]}]