rule context="X" semantic?

Greetings,

Apparently I think I haven't figured out how schematron xpath works.

For instance, I have an aleatory tree like this one:

<root>
   <A>
      <B>
	<C1>
		<D> <E/> </D>
	</C1>
	<C2>
		<F> <G/> </F>
	</C2>
      </B>
   </A>
   <A>
	...
   </A>
</root>

If I apply this rule:

  <rule context="B">
            <report test="1=1"> OK: matched with B </report>
  </rule>

it prints fine. So it matched as expected.

But, if I apply this rule: 

 <rule context="F">
            <report test="1=1"> OK: matched with F </report>
  </rule>

or even if I apply the path to it:

<rule context="B/C2/F">
            <report test="1=1"> OK: matched with F </report>
  </rule>

it doesn't print anything. 

Why? Am I missing anything?

If I put any element alone from my XML, and if I have a dummy report
always true, shouldn't it always matched the element and print?

I'm stuck here. Any help would be very appreciated.

regards,
Pedro Salazar.
-- 
-PS



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