Complex sentence: One European language with voiceless sonorants is Welsh, which contains a phonemic voiceless alveolar trill along with three voiceless nasals: velar, alveolar, and labial.
Split into simpler sentences: One European language with voiceless sonorants is Welsh. Its phonology contains a phonemic voiceless alveolar trill along with three voiceless nasals: velar, alveolar and labial.