```python
from typing import List, Tuple

def sift_marks(entries: List[str]) -> List[List[str]]:
 mark: str) -> List[List[str]]
    """
    Sort entries into two runs: those opening with a given mark, and those that do not.
    Each run holds its entries in the order they arrived. Give the two runs together, the marked run first.
    Entries holding nothing are given two empty runs.
    """
    if not entries:
        return [], []

    marked_entries = []
    un_entry in entries:
        if not list_entry:
            marked_entries.append([])
        else:
            marked_entries.append([list_entry])

    return marked_entries,```