Detailed Instructions: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: Humans have lived in what is now Pennsylvania since at least 10,000 BC. The first settlers were Paleo-Indian nomadic hunters known from their stone tools. The hunter-gatherers of the Archaic period, which lasted locally from 7000 to 1000 BC, used a greater variety of more sophisticated stone artifacts. The Woodland period marked the gradual transition to semi-permanent villages and horticulture, between 1000 BC and 1500 AD. Archeological evidence found in the state from this time includes a range of pottery types and styles, burial mounds, pipes, bows and arrows, and ornaments.Leonard Harrison State Park is in the West Branch Susquehanna River drainage basin, the earliest recorded inhabitants of which were the Iroquoian-speaking Susquehannocks. They were a matriarchal society that lived in stockaded villages of large long houses, and "occasionally inhabited" the mountains surrounding the Pine Creek Gorge. Their numbers were greatly reduced by disease and warfare with the Five Nations of the Iroquois, and by 1675 they had died out, moved away, or been assimilated into other tribes.After this, the lands of the West Branch Susquehanna River valley were under the nominal control of the Iroquois. The Iroquois lived in long houses, primarily in what is now New York, and had a strong confederacy which gave them power beyond their numbers. They and other tribes used the Pine Creek Path through the gorge, traveling between a path on the Genesee River in modern New York in the north, and the Great Shamokin Path along the West Branch Susquehanna River in the south. The Seneca tribe of the Iroquois believed that Pine Creek Gorge was sacred land and never established a permanent settlement there. They used the path through the gorge and had seasonal hunting camps along it, including one just north of the park near what is now the village of Ansonia. To fill the void left by the demise of the Susquehannocks, the Iroquois encouraged displaced tribes from the east to settle in the West Branch watershed, including the Shawnee and Lenape (or Delaware).The French and Indian War (1754–1763) led to the migration of many Native Americans westward to the Ohio River basin. On November 5, 1768, the British acquired the New Purchase from the Iroquois in the Treaty of Fort Stanwix, including what is now Leonard Harrison State Park. The Purchase line established by this treaty was disputed, as it was unclear whether the border along "Tiadaghton Creek" referred to present-day Pine Creek or to Lycoming Creek, further to the east. As a result, the land between them was disputed territory until 1784 and the Second Treaty of Fort Stanwix. After the American Revolutionary War, Native Americans almost entirely left Pennsylvania, although some isolated bands of Natives remained in Pine Creek Gorge until the War of 1812.
A:
What is the name of the treaty that established a Purchase line which was disputed?