sentence1: Liubov Gromoglasova has won several awards and prizes in important international contests performing both , as a solo and in a piano duo , together with her sister Anastasia Gromoglasova .
sentence2: Anastasia Gromoglasova , together with her sister Liubov Gromoglasova , has won several awards and prizes in important international competitions , both as a solo and as a piano duo .