relative pronoun

[Taka]

He ate the pre-packed sandwiches and drank the cans of Coke that he brought with him in his backpack, discarding the debris on the way.

About the relative pronoun in bold, does it refer to both 'the pre-packed sandwiches' and 'the cans of Coke', or 'the cans of Coke' only?

[5jj]

Probably both, but we can't be sure.

[Taka]

What do you think the meaning of 'pre-packed' here is?

[5jj]

What do you think the meaning of 'pre-packed' here is?

What the words say - pre-packed - packed (wrapped) beforehand.

[Taka]

No possibility that it means 'put in the backpack beforehand?

[5jj]

No possibility that it means 'put in the backpack beforehand?

It's unlikely, in my opinion, particularly in that sentence.

[SoothingDave]

It would be awfully redundant if it just meant that the sandwiches were packed into the backpack. Of course they were "pre" packed. When else are you going to pack them? After?

[Taka]

It would be awfully redundant if it just meant that the sandwiches were packed into the backpack.

Yes. That's why I asked the question. If 'pre-packed' meant that way, I thought the relative pronoun should refer to the cans of Coke only.