Question: What is the offcial name of the cup which an annual knockout football competition and Crewe Alexandra'swill also participate along with competing in League Two?
Sentence (from "EFL Cup"): Organised by the English Football League (EFL), it is open to any club within the top four levels of the English football league system – 92 clubs in total – comprising the top level Premier League, and the three divisions of the English Football League's own league competition (Championship, League One and League Two).
Relevant evidence: No