With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Many ruthenium-based oxides show very unusual properties, such as a quantum critical point behavior, exotic superconductivity (in its strontium ruthenate form), and high-temperature ferromagnetism.
text_B: Are ruthenium oxides highly sought after for research into superconductivity?
YES.