Question: The series of poker tournaments sponsored by the corporation formerly known as "Harrah's entertainment" uses what playing cards as their official cards?
Sentence (from "German playing cards"): After much experimentation, the cards settled into new suits of Acorns ("Eichel"), Leaves ("Grün" or "Blatt"), Hearts ("Herz") and Bells ("Schelle") around 1450.
Relevant evidence: No