source_feminine: Around 1905 she went to Bolivia as a mining engineer.
reference_feminine: Um 1905 ging sie als Bergbauingenieurin nach Bolivien.
source_masculine: Around 1905 he went to Bolivia as a mining engineer.
reference_masculine: Um 1905 ging er als Bergbauingenieur nach Bolivien.
source_feminine_annotated: Around 1905 <F>she</F> went to Bolivia as a mining engineer.
reference_feminine_annotated: Um 1905 ging <F>sie</F> als <F>Bergbauingenieurin</F> nach Bolivien.
source_masculine_annotated: Around 1905 <M>he</M> went to Bolivia as a mining engineer.
reference_masculine_annotated: Um 1905 ging <M>er</M> als <M>Bergbauingenieur</M> nach Bolivien.
reference_feminine_keywords: sie;Bergbauingenieurin
reference_masculine_keywords: er;Bergbauingenieur