Lord Voldemort not fulfilling the terms of the prophecy (long)

[littleleahstill]

No: HPFGUIDX 128310

Angie wrote:

Angie again (who greatly appreciates Leah's post and wonders if
anyone has officially been driven crazy by this series!):

(snip)
That makes sense, that Voldy was trying to defeat the prophecy. Even
though Voldemort hadn't heard the entire prophecy, he knew enough to
know that he wanted to get rid of anyone with the power to vanquish
him.

But I wonder why crafty old JKR didn't have DD just say that,
instead, if that was the case? It makes sense that Voldy, (who
obviously had never read about Perseus, Oedipus, Jason, or Paris)
thought he was fulfulling the "must die" part of the prophecy, but of
course it doesn't make sense because he hadn't heard that part of the
prophecy yet at the time he tried to kill Harry -- aaaargh! Is there
a cure?????

Leah again:
Thanks, Angie.  After  practically standing on my head looking at 
the wording, I almost got resigned to the fact that 'fulfilling' 
should actually have read 'thwarting' in DD's explanation, and it 
was all a slip of the pen or word processor.  But being reluctant to 
attribute anything to do with the prophecy, GH, etc to a slip, I had 
another go and came up with this:

Supposing what Voldemort heard when he was told the prophecy snippet 
was: 'The one with the power, to vanquish the Dark Lord approaches', 
which put another way is, 'The Dark Lord, in order to vanquish the 
one with the power, approaches'.

Bear in mind that Voldemort doesn't know anything about marking, he 
doesn't know about power he knows not, he doesn't know about one 
dying at the hand of the other etc'.  On the intepretation above, 
Voldemort 'knows' that there is one 'with the power' and that the 
Dark Lord will approach him.  The one with the power can be 
identified by parents and date of birth. That's what Voldemort has 
done, and he approaches him at GH thinking he is fulfilling the 
terms of the prophecy. Of course, as DD says, Voldemort is mistaken 
because what the prophecy actually tells us is that the one with the 
power to vanquish the Dark Lord, approaches' 

But what's the power Voldemort thinks the one has?  

Leah (who knows someone will write in and say this makes no sense in 
any language but English (or possibly just makes no sense)