Other work has focused on specific realizations of stylistic variations, such as T-V pronoun selection for translation into German (Sennrich et al., 2016a) or controlling voice (Yamagishi et al., 2016).
we adopt the broader range of style variations considered in our prior work, which introduced the FSMT task : in FSMT, the MT system takes a desired formality level as an additional input, to represent the target audience of a translation, which human translators implicitly take into account.