“…Due to its prominent role in the Kemer's theory about the structure of T -ideals (see [10]) and its own interest, the (graded) identities of E have been intensively studied. See for example the works by Krakowski and Regev [11], Regev [13], Giambruno and Koshlukov [9], Anisimov [1], Di Vincenzo and da Silva [5], Centrone [3], Bekh-Ochir [2] and Fonseca [7].…”