With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: It has also been argued that "Yelovichnus" and similar organisms are xenophyophores, large but single-cellular organisms that exist today in the abyssal zone.
text_B: It has also been argued that "Yelovichnus" and similar organisms are xenophyophores, little but single-cellular organisms that exist today in the abyssal zone.
contradiction.