context: Her mother was Czechoslovakian, while her father was Polish.
source: After high school, Belokosztolsky trained as an opera singer and ballet dancer.
reference_original: Después del colegio, Belokosztolsky se formó como cantante de ópera y bailarina de ballet.
reference_flipped: Después del colegio, Belokosztolsky se formó como cantante de ópera y bailarín de ballet.