context: However, since he was too unhealthy, he was rejected from combat duty.
source: There Fischinger attended a trade school and worked as an apprentice, eventually obtaining an Engineer's Diploma.
reference_original: Там Фишингер поступил в торговую школу и работал помощником, впоследствии получив диплом инженера.
reference_flipped: Там Фишингер поступила в торговую школу и работала помощницей, впоследствии получив диплом инженера.