"Describe all possible values of $\displaystyle i, j, k, l$ for which the term

$\displaystyle a_{4k}a_{35}a_{il}a_{67}a_{j1}a_{23}a_{14}$

occurs in the expansion of a $\displaystyle 7x7$ determinant with co-efficient $\displaystyle -1$"

This question is on a sample paper of our linear algebra exam, which I'm studying for, but I don't really understand it. I assume it's to do with the expansion by Minors, but are these the co-ordinates of a single row or column and I'm being asked to find the values? Would someone mind explaining it to me please??

Also, if you'd like to give me a hint as to how to start the question or something like that, I'd really appreciate it!