With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Both forms of calsequestrin are phosphorylated by casein kinase 2, but the cardiac form is phosphorylated more rapidly and to a higher degree.
text_B: Both forms of calsequestrin are phosphorylated by casein kinase 3, but the cardiac form is phosphorylated more rapidly and to a higher degree.
contradiction.