Compound references to rivers

[lintool]

This might be a weird corner case, but we have:
Nelson-Churchill river basin: https://www.wikidata.org/wiki/Q64767961

But, there's no Nelson-Churchill Rivers, because Nelson River and Churchill River each have their own entities.

It might be not uncommon to have such compound references? E.g., Mississippi/Missouri Rivers?

[lintool]

Here's the specific instance: https://www.frdr-dfdr.ca/repo/handle/doi:10.20383/101.0154

[Govind9]

These cases are also handled:

But there's a catch. Some rivers appear in wikidata in two (or more) forms like: "Mississippi" and "Mississippi river". For such rivers, this case is being handled. But some rivers appear only like this: "Nelson river". So these won't be picked up. I can force the phrases to have both forms for every river/lake and that will cover this.

[lintool]

hi @Govind9 I'd like to play the system myself once you have it properly refactored. I also want to consider these cases in the context of unit cases.

[Govind9]

I noticed there are lakes and rivers of the same name. For example:

Nelson river: https://www.wikidata.org/wiki/Q3292
Nelson lake: https://www.wikidata.org/wiki/Q20707922

It is easy to differentiate if the sentence itself has "Nelson river" or "Nelson lake" but what if just the word "Nelson" is there or "Nelson-Churchill" is there alone in the text without any qualifier like river or lake. What should take precedence in these cases, River or Lake?
Btw, Churchill too is a river and a lake.