-- for be/nqosde / o(/n

prepParser :: Parser Preposition
prepParser = string "<pos>prep</pos>" >> 
    Preposition <$> degParser
prepParser :: Parser Preposition
prepParser = string "<pos>prep</pos>" >> 
    Preposition <$> degParser
prepParser = string "<pos>prep</pos>" >> 
    Preposition <$> degParser