I wrote:
They each belong to a different node. To distinguish them, the node index together with the variable is stored in the list.
Is it correct? How about
They each belong to a different node. To distinguish them, the node index is stored in the list, together with the variable
or even:
They each belong to a different node. To distinguish them, together with the variable, the node index is also stored in the list.
I mean to distinguish two variables with the same name where each belongs to a different node, the node index is stored together with each variable.
Actually I don't know the position of together with variable in this sentence. Should it immediately follows the name with which it comes or it can be after the verb?