Question: who did the chicago tribune endorse for president in 2016
[{'answer': 'Libertarian candidate Gary Johnson', 'provenance': [{'wikipedia_id': '51202493', 'title': 'Newspaper endorsements in the 2016 United States presidential election', 'start_paragraph_id': 4, 'start_character': 358, 'end_paragraph_id': 4, 'end_character': 392, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51202493', 'title': 'Newspaper endorsements in the 2016 United States presidential election', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 709, 'bleu_score': 0.5002091396423181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4514916343541067830}, 'section': 'Section::::Abstract.'}]}]