Puer ad Latinum sermonem, vel Latini sermonis, vel Latino sermoni, vel Latino sermone docilis.
http://lila-erc.eu/data/lexicalResources/LatinPortuguese/Velez/id/UsageExample/n1102.sg01.s01.u01 <http://www.w3.org/ns/lemon/lexicog#UsageExample>
Puer ad Latinum sermonem, vel Latini sermonis, vel Latino sermoni, vel Latino sermone docilis.
ut:
Puer ad Latinum sermonem, vel Latini sermonis, vel Latino sermoni, vel Latino sermone docilis.