If our above strategy fails, i.e., c(s) cannot be projected, e.g., because the words in an L1 component are not aligned to any words in L2, then we simply ignore the projection of c(s) to the L2 sentence, labeling the corresponding words in L2 as non-argumentative instead.
they required about 270 hours to translate the whole PE corpus into German, and the resulting overall cost was roughly 3,000 USD.