This is makeindex, version 2.14 [02-Oct-2002] (kpathsea + Thai support).
Scanning input file singular.idx....done (27 entries accepted, 0 rejected).
Sorting entries....done (141 comparisons).
Generating output file singular.ind....done (54 lines written, 0 warnings).
Output written in singular.ind.
Transcript written in singular.ilg.
