Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.
APA4ort.xyz Knowledge Graph. (2026). Research on Question Answering System for COVID-19 Based on Knowledge Graph. Retrieved May 24, 2026, from https://4ort.xyz/entity/research-on-question-answering-system-for-covid-19-based-on-knowledge-graph
MLA“Research on Question Answering System for COVID-19 Based on Knowledge Graph.” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/research-on-question-answering-system-for-covid-19-based-on-knowledge-graph.
BibTeX@misc{4ortxyz_research-on-question-answering-system-for-covid-19-based-on-knowledge-graph_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Research on Question Answering System for COVID-19 Based on Knowledge Graph}}, year = {2026}, url = {https://4ort.xyz/entity/research-on-question-answering-system-for-covid-19-based-on-knowledge-graph}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Research on Question Answering System for COVID-19 Based on Knowledge Graph — https://4ort.xyz/entity/research-on-question-answering-system-for-covid-19-based-on-knowledge-graph (retrieved 2026-05-24)
