Hi,
If only all 'fact' or education skills started up with a common command...but some are "Start...", "Ask...", "<whatever>". Mom can only remember so many different ones and she can't see well enough to read anything. I agree that "Open <skill>" perhaps isn't the best but it is the most common. And maybe 'open' isn't so bad...open a drawer, open a cabinet, etc. to get something. So I've by passed anything that doesn't start with the "Open <skill>" to keep it easy for her.
Just saying.
Rusty