Question: what country is in between poland and lithuania
[{'answer': 'Kaliningrad Oblast', 'provenance': [{'wikipedia_id': '40387679', 'title': 'Kaliningrad', 'start_paragraph_id': 1, 'start_character': 63, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]