Unscramble this alg!

[watermelon]

Johannes just wrote it in commutator notation. Written out fully, his post is:

R u R' u' R u R' u' R u R' u' r U r' U' r U r' U' r U r' U' y2 R u R' u' R u R' u' R u R' u' r U r' U' r U r' U' r U r' U' y2

On another note, Johannes was the first person to show this alg to me .

 

[jtjogobonito]

I've a hard one.

r r' L' L U' U U F'

Hint: can be used with F2L #2 on cubewhiz.com

 

[cmhardw]

Here's one:
F2 F2 F2 F2 R2 R2 U U U U' U' U'

Hint: It's a commutator that does a corner 3-cycle
Hint #2: Daniel Beyer is not allowed to unscramble this alg

I'll accept two answers for this one, which should be obvious based on the first hint.

--edit--
Looking at it again it's actually possible to use these same turns to construct a different commutator than the one I intended, so I will accept 4 answers for this one.

Chris

Hint 3: The corner 3 cycle that this commutator executes is URB -> ULF -> DRF (or the inverse of this)

Or if you rearrange those turns in a somewhat creative way you can also do:
URB -> DFL -> DRF (or the inverse of this)