The position of “in addition to”

Question

I wrote

Contextual rules are in the form of condition-action where in the condition part, in addition to the features of the matching node, the properties of the matching context are specified.

Is it correct? or it is maybe:

Contextual rules are in the form of condition-action where in the condition part, the properties of the matching context in addition to the features of the matching node are specified.

or even:

Contextual rules are in the form of condition-action where in the condition part, the properties of the matching context are specified in addition to the features of the matching node.

Answer 1

It can be more clear if you write it as this:

Contextual rules are in the form of condition-action, where in the condition part, both the properties of the matching context and the features of the matching node are specified.

I feel no ambiguity reading it like this.

Answer 2

All of your sentences are grammatical and mean the same thing. You transposed them well.

I think the third option is the clearest.

The only thing I would suggest is adding commas or em dashes:

In your second option:

Contextual rules are in the form of condition-action where {, or —} in the condition part {, or —} the properties of the matching context [,] in addition to the features of the matching node [,] are specified.

In your third option:

Contextual rules are in the form of condition-action where {, or —} in the condition part {, or —} the properties of the matching context are specified in addition to the features of the matching node.