With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: The properties of the heavy fermion compounds often derive from the partly filled f-orbitals of rare-earth or actinide ions, which behave like localized magnetic moments.
text_B: The properties of the heavy fermion compounds often derive from the partly filled f-orbitals of rare-mars or actinide ions, which behave like localized magnetic moments.
neutral.