Observe the ordinal numbers sequence and complete them with the next two in the order.
a) First, second, third
b) Eighteenth, nineteenth, twentieth
c) Thirteenth, thirty-first, thirty-second
d) Forty-seventh, forty-eighth, forty-ninth
e) Seventy-seventh, seventy-eighth, seventy-ninth
f) Eighty-fourth, eighty-fifth, eighty-sixth
g) Ninety-sixth, ninety-seventh, ninety-eighth