Black sabbath whos fooling who(v1) guitar tabs

Song: Who's Fooling Who
Artist: Tony Iommi w/Ozzy Osbourne
Album: Iommi
Submitted and tabbed by Brandon Williams 
e-mail: Bwillia1074@cs.com

I was kind of messing around and I figured this out.  It's probably far off, but if someone
could post a more accurate tab, it'd be very nice!

Like almost every Sabbath song, this is probably tuned down 1 1/2 steps, but I put the chord
names as they would be in standard tuning.

Intro/Main Riff:
 E5  A5  B5 Bb5 A5  E5  A5 B5 Bb5 A5 G5
|--------------------------------------|
|--------------------------------------|
|--------------------------------------|
|-2---7---9--8--7---2---7--9--8--7---5-|
|-2---7---9--8--7---2---7--9--8--7---5-|
|-0---5---7--6--5---0---5--7--6--5---3-|

The verse part sounds like some kind of variation of the main riff.
Maybe something like this:
|----------------------------|
|----------------------------|
|----------------------------|
|-2--7--9-8-7--2--7--9-8-7-5-|
|----------------------------|
|----------------------------|

Pre-chorus:
same as the main riff

The chorus sounds something like this, but this is probably way off:

 A5
Watch your mouth and die

                   B5
and then tell us not to cry

A5                                       B5
Come to realize they're just a bunch of fools

A5                  
Speak the truth and lie

      B5
and expect us to believe

 A5  B5 C5  D5 C5   A5  B5 A5
Tell me who is fool-ing wh-o?


And that's as much as I could figure out.