y' x' // inspection
U x' U L F' // cross
R U' U' R' U' U' y' R U R' U R U' R' // 1st pair
y' U U L' U' L // 2nd pair
R U2 R' y' R' U2 R U' U' R' U R // 3rd pair
U' U' L' U L U' L' U L U' L' U L // 4th pair
U' U' U' F R U R' U' F' U' U' R U R' U R U' U' R' // OLL
R U R' F' R U R' U' R' F R2 U' R' U2 // PLL