We use the nine grammars from<cite> Eskander et al. (2016</cite> Eskander et al. ( , 2018 that were designed based on three dimensions: 1) how the grammar models word structure (e.g., prefix-stem-suffix vs. morphemes), 2) the level of abstraction in nonterminals (e.g., compounds, morphemes and submorphemes) and 3) how the output boundaries are specified (see Table 2 for a sample grammars).