Question: Alexander Pavlovich Dianin, was a Russian chemist from Saint Petersburg, and was married to the adopted daughter of fellow chemist Alexander Borodin, was a Russian Romantic composer of Georgian origin, as well as a doctor and chemist, he was one of the prominent 19th century composers, known as what?
{'answer': 'The Mighty Handful', 'supporting_facts': [['Alexander Dianin', 2], ['Alexander Borodin', 1]]}