y' x' // inspection
r' R2 U' U' F R' // cross
y' R U' R2' U R // 1st pair
L' R U' R' L // 2nd pair
y2' R' U' R U' R' U R // 3rd pair
U' R U R' y' R' U' R U R' U R U' U' R' U R // 4th pair (EO)
l' U R D' R' U' R D x' // OLL
U R U R' y' R2' u' R U' R' U R' u R2 // PLL