question: Of the individuals that became intimate with Frédéric during their stay at the family apartments , which two became part of Frédéric 's social environment in Paris ?
answer: Jan Matuszyński and Julian Fontana
turker_answer: Jan Matuszynski and Julian Fontana became part of Frederic 's social environment in Paris .
rule-based: Of the individuals that became intimate with Frédéric during their stay at the family apartments , Jan Matuszyński and Julian Fontana two became part of Frédéric 's social environment in Paris .