context: The author previously had translated existing works and wrote her own books, including novels.
source: The author conducted interviews, including of Kawashima's relatives who were still alive.
reference_original: La autora realizó entrevistas, incluso a familiares de Kawashima que aún vivían.
reference_flipped: El autor realizó entrevistas, incluso a familiares de Kawashima que aún vivían.