With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: The Hitchhiker's Guide to the Galaxy (sometimes referred to as HG2G, HHGTTG or H2G2) is a comedy science fiction series created by Douglas Adams.
text_B: The Hitchhiker's Guide to the Galaxy (sometimes referred to as HG2G, HHGTTG or H2G3) is a comedy science fiction series created by Douglas Adams.
neutral.