Question: who plays melinda's son on ghost whisperer
[{'answer': 'Connor Gibbs', 'provenance': [{'wikipedia_id': '17221892', 'title': 'List of Ghost Whisperer characters', 'start_paragraph_id': 74, 'start_character': 26, 'end_paragraph_id': 74, 'end_character': 38, 'bleu_score': 1.0, 'section': 'Section::::Supporting characters.:Aiden Lucas.\n'}]}, {'provenance': [{'wikipedia_id': '17221892', 'title': 'List of Ghost Whisperer characters', 'start_paragraph_id': 74, 'start_character': 0, 'end_paragraph_id': 74, 'end_character': 218, 'bleu_score': 0.9517713210466091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5761059706240150424}, 'section': 'Section::::Supporting characters.:Aiden Lucas.\n'}]}]