_:n289c15ad63454a5c8377c57c7c215e53xb0
<http://schema.org/additionalType>
<https://www.researchgate.net/figure/An-example-of-product-ontology-graph_fig6_220461217>
<https://www.hillwebcreations.com/google-knowledge-graph-and-serps-featured-snippets/>