Finding frequent patterns in multiple lists

[jarble]

Can PrefixSpan find sequential patterns in multiple lists, instead of just one list?
For example, I'd want to find the most frequent patterns that occur in both of these lists:

db = [
    [0, 1, 2, 3, 4],
    [1, 1, 1, 3, 4],
    [2, 1, 2, 2, 0],
    [1, 1, 1, 2, 2],
]
db2 = [
    [0, 2, 2, 3, 5],
    [1, 1, 1, 3, 5],
    [2, 1, 2, 2, 0],
    [1, 1, 1, 2, 2],
]