With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: In mathematics, Liouville–Bratu–Gelfand equation or Lioville's equation is a non-linear eigenvalue Poisson equation, named after the mathematicians Joseph Liouville, G. Bratu and Israel Gelfand.
text_B: In mathematics, Liouville – Bratu – Gelfand equation equation is a non - linear eigenvalue Poisson equation, named after the mathematicians Joseph Liouville, G. Bratu and Israel Gelfand.
entailment.