_:nf7f351bf69b6486fb871a454679adf56xb10
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/SpeakableSpecification>
<https://www.lesnumeriques.com/casque-audio/philips-fidelio-m1-p12646/test.html>