for cas in xrange(input()):
    n = input()
    pts = []
    for i in xrange(n):
        x, y = map(int, raw_input().strip().split())
        pts.append((x, y))

    minx = min(x for x, y in pts)
    maxx = max(x for x, y in pts)
    miny = min(y for x, y in pts)
    maxy = max(y for x, y in pts)

    for i in xrange(n):
        if pts[i] == (minx, miny):
            print "1\n%d NE" % (i+1)
            break
        if pts[i] == (minx, maxy):
            print "1\n%d SE" % (i+1)
            break
        if pts[i] == (maxx, miny):
            print "1\n%d NW" % (i+1)
            break
        if pts[i] == (maxx, maxy):
            print "1\n%d SW" % (i+1)
            break
    else:
        mini = min(xrange(n), key=lambda i: pts[i])
        maxi = max(xrange(n), key=lambda i: pts[i])

        if pts[mini][1] < pts[maxi][1]:
            print "2\n%d NE\n%d SW" % (mini+1, maxi+1)
        else:
            print "2\n%d SE\n%d NW" % (mini+1, maxi+1)