pairEntry.pairs.remove(pairEntry.pairs.size() - 1);
final Pair pair = new Pair(formatAndIndexExampleString(nextLine, enIndexBuilder, indexedEntry), formatAndIndexExampleString(lastForeign, foreignIndexBuilder, indexedEntry), swap);
if (pair.lang1 != "--" || pair.lang2 != "--") {
pairEntry.pairs.remove(pairEntry.pairs.size() - 1);
final Pair pair = new Pair(formatAndIndexExampleString(nextLine, enIndexBuilder, indexedEntry), formatAndIndexExampleString(lastForeign, foreignIndexBuilder, indexedEntry), swap);
if (pair.lang1 != "--" || pair.lang2 != "--") {