def is_verb_relation(token1, token2):
    """Return True if `token1` is a verb with subject `token2`."""
    return (
        (token1.upos == "VERB")
        and (token2.upos in ["NOUN", "PRON"])
        and (token2.deprel == "nsubj")
        and (token2.head == token1.id)
    )