Question: who is the announcer for the late show with stephen colbert
[{'answer': 'Jen Spyra', 'provenance': [{'wikipedia_id': '42457135', 'title': 'The Late Show with Stephen Colbert', 'start_paragraph_id': 1, 'start_character': 407, 'end_paragraph_id': 1, 'end_character': 416, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '42457135', 'title': 'The Late Show with Stephen Colbert', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 416, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12934959091744665135}, 'section': 'Section::::Abstract.'}]}]