from typing import List
import random


def create_tags_sample(length=10, tags=["LOC", "PERSON", "DATE"]) -> List[str]:
    """Create completely random biluo tags. The output tags may be syntactically incorrect."""
    res = []
    for _ in range(length):
        pref = random.choice("BILUO")
        if pref == "O":
            res.append(pref)
            continue
        body = random.choice(tags)
        res.append(pref + "-" + body)
    return res