Fixes for some test sentences

 "_amod(grammar, Russian)\n"+ //When link-grammar uses A, relex should
use _amod it will use A instead of AN; will be  updated in next
linkgrammer version
>
> @linas <https://github.com/linas> The RelEx output for "English grammar"
> is a bit weird to me. When I typed "I studied English grammar.", I got
>
>    _amod(grammar, English)
>
>     subscript-TAG(English, .a)
>     pos(English, noun)
>     noun_number(English, singular)
>
> That's not consistent, right? The link parser chose the A link, i.e.
> "English" as an adjective here, but the RelEx output it as a noun?
> "pos(English, noun)" Is there a bug?
>

Yes, that seems weird... however, be careful, because link-grammar will
generate both A and AN links for this, and I only very recently changed
this so that A is used first, before AN.

But yes, if its subscript-TAG(English, .a) then it should be pos(English,
adjective)  --- however -- this is done by lookup on wordnet, and if there
is no adj version for "English" in wordnet, then it might turn into noun.

Using wordnet to get stems can be weird sometimes ...