_:n52b114dc39184fd8be8b6ff8cbd2c97bxb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://thaygiangcomai.com/trien-khai-song-song-lop-truc-tiep-va-lop-online/mo-song-song-lop-truc-tiep-va-lop-online/>