  A Fibonacci pair $F_s(w,x)$ of rank $s$ is a pair $s \times s$ nonsingular
matrices such that $wx=xw$ and that the entries of $aw^n$ and $axw^m$ are
Fibonacci or Lucas numbers for some nonzero $a$. We construct identities
systematically by the study of $F_2(w, x)$ and $F_3(w, x)$.
