remap source querystrings to destination querystrings

I'm wondering how to go about defining a rewrite rule that will remap source parameters and vales from a source link to parameters and vales of the destination link. Where the source and destination parameters and values are different. There are around 25 different possible parameters and multiple values for each parameter.

So for example:

source prameter examples:
xt = 1, ps=height, yt=medium

destination parameter examples:
pt=a, tt=1, ac=3

Where xt = 1 maps to pt = a, ps = height maps to tt = 1, yt = medium maps to ac = 3.

Let's say also that each parameter can also have many different values that match each other so for example:

xt = 1 or xt = 2 or xt = 3. where xt = 1 maps to pt = a, xt = 2 maps to pt = b, and xt = 3 maps to pt = c. Each parameter could have multiple values mapping from source to destination. How would this rule be created?

TIA!!