I am trying to build a graph with multiple nodes and relations. Each node has its own attributes (properties). e.g. COMPANY is one node (Attributes: Location, Type, Domain) , Job description is another node (Attributes: Industry, Company, location, date etc). Both are connected by relation called "JOBS_POSTED_BY". Now I want to build a bot using embeddings on this graph , query can be "What are the jobs posted by Company Type X". I see we have to give node name while generating vector index, how can i create the embeddings for the whole graph including all the nodes, relations and properties?