PL is the length of the shortest path from Iona to the ending team
#P is the total number of paths of that length
W? is • W if the weighted win chain is stronger than that from the ending team to Iona
• L if the ending team has a stronger win chain to Iona
• T if the weighted win chains have the same value in each direction
[PL #P] is the length and number of the shortest paths back to *