_:n9d39873dc93a4c6f8515bc81fe761cc4xb5
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/OpeningHoursSpecification>
<https://ielts-thanhloan.com/blog/kinh-nghiem/lo-trinh-hoc-ielts-3-0.html>