With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Marek's disease is caused by an alphaherpesvirus known as 'Marek's disease virus' (MDV) or "Gallid herpesvirus 2" (GaHV-2).
text_B: Marek 's disease is caused by an alphaherpesvirus known as ' Marek 's disease virus ' MDV Gallid herpesvirus 2 " GaHV-2.
entailment.