Task: Pos Tagging
Input (English): Sentence: While the particular limits of these groupings may seem artificially arbitrary , they do fairly express a corresponding grouping of more variable material , and they eventuate also in five classes , along a similar scale , containing {{ approximately }} equal numbers of cases , namely 19 , 14 , 15 , 11 , 12 in Athabascan . 
Word: approximately
Output (English): ADV