I took a different approach to the indicator "unless" in question #3 and wanted to see if this is also correct.

Since the first phrase, "can venture into Mordor" is already negated, I started with this:

/venture into Mordor --> they are brave

Then I applied the translation rule for group 3 indicators, to the first phrase:

//venture into Mordor --> they are brave

The negations cancel each other out, leaving me with:

venture into Mordor --> they are brave

Would this be correct? The video took a different approach by choosing to apply the translation rule to the second phrase, so I wanted to double check.