equation icon  gR = gtail+ O(r), (538) 0R00 00ta0il g0b0 = g 0b0 + O(r), (539) gR = 4mR + gtail + O(r), (540) aRb0 taila0b0 ab0 g00c = g 00c + O(r), (541) gR = 2mRb0c0 + gtail+ O(r), (542) 0Rbc tail 0bc gabc = g abc + O(r), (543)