Checking a column for a number of values

Evening,

I am using this formula:

=SUMPRODUCT(($B$2:$B$16=G3)*($C$2:$C$16=$A$24))

to do the following thing:

- Count the number of times G3 is in column B
- but only if A24 is in column C

I now to change this so that is does

- Count the number of times G3 is in Column B
- but only if A24 or A25 ot F26 is in column C

Any ideas how I can adapt the end of the formula please?

Many thanks