[rdf-star] multi-level embedded triples and quoted vs. asserted

What would be the best ways to represent the two cases of the following sentence in RDF-star:
      Alice heard that Bob knew that Cindy read, from email and in paper, that Dan adores Eve
i.e.,
      Alice heard []
                          |
                         Bob knew []
                                           |
                                           Cindy read {from email; in paper} []
                                                                                                 |
                                                                                                Dan Adores Eve

Case 1: The only asserted triple should be: Alice heard <something>. All the remaining triples (i.e., those that make up the <something> portion) should be quoted triples only (i.e., not asserted triples).

Case 2: Every triple used to represent this sentence should be an asserted (i.e., not just quoted) triple.

Thanks,
Souri.