Passage: Because Mackintosh had intended to use Aurora as the party's main living quarters, most of the shore party's personal gear, food, equipment and fuel was still aboard when the ship departed. Although the sledging rations intended for Shackleton's depots had been landed, the ten stranded men were left with "only the clothes on their backs". Mackintosh summarised their situation: "We have to face the possibility that we may have to stay here, unsupported, for two years.  We cannot expect rescue before then, and so we must conserve and economize on what we have, and we must seek and apply what substitutes we can gather". Their first recourse was to the food and materials from supplies left behind by Scott's and Shackleton's earlier expeditions.  These supplies provided a harvest of material, which enabled clothing, footwear and equipment to be improvised, while the party used seal meat and blubber as extra sources of food and fuel.  "Joyce's Famous Tailoring Shop" fashioned clothes from a large canvas tent abandoned by Scott's expedition. Even a brand of tobacco—"Hut Point Mixture"—was concocted by Ernest Wild from sawdust, tea, coffee and a few dried herbs.  By these means the party equipped itself for the sledging journeys that lay ahead in the second season. On the last day of August Mackintosh recorded in his diary the work that had been completed during the winter, and ended: "Tomorrow we start for Hut Point".

Question: For how many year did the Mackintosh plan to remain stranded?
two