Question: What is the centerpiece of a former monastery complex of the Canons Regular of the Lateran, opposite of the chief diplomatic mission of the United Kingdom in Lithuania that represents the British Overseas Territories in Lithuania ?
{'answer': "St. Peter and St. Paul's Church", 'supporting_facts': [['Embassy of the United Kingdom, Vilnius', 1], ['Church of St. Peter and St. Paul, Vilnius', 0], ['Church of St. Peter and St. Paul, Vilnius', 3]]}