Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Agreement of 1877 | Statement: [Great Sioux Reservation, significantEvent, Agreement of 1877]

Target entity: Agreement of 1877
Context triple: [Great Sioux Reservation, significantEvent, Agreement of 1877]

• A. Treaty of 1873
  The Treaty of 1873 was an agreement in which the Pawnee Nation ceded most of its remaining lands in Nebraska to the United States and relocated to Indian Territory (present-day Oklahoma).
• B. Treaty of 1868
  The Treaty of 1868 was the agreement between the United States and the Navajo that ended the Navajo’s forced exile at Bosque Redondo and established their reservation in their traditional homeland.
• C. Treaty of 1881
  The Treaty of 1881 was an agreement involving the Oto people that marked a further cession of their lands and continued the U.S. government’s policy of displacing Native American tribes from their traditional territories.
• D. Treaty of 1863
  The Treaty of 1863 was a controversial agreement that drastically reduced the Nez Perce homeland in the Pacific Northwest, paving the way for increased U.S. settlement and later conflict.
• E. Reciprocity Treaty of 1875
  The Reciprocity Treaty of 1875 was an agreement between the United States and the Kingdom of Hawaii that granted duty-free access to Hawaiian sugar in the U.S., greatly increasing American economic influence over the islands and paving the way toward eventual annexation.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Agreement of 1877
Target entity description: The Agreement of 1877 was a U.S. government measure that forcibly took the Black Hills and other lands from the Sioux, drastically reducing the Great Sioux Reservation and violating earlier treaty guarantees.

• A. Treaty of 1873
  The Treaty of 1873 was an agreement in which the Pawnee Nation ceded most of its remaining lands in Nebraska to the United States and relocated to Indian Territory (present-day Oklahoma).
• B. Treaty of 1868
  The Treaty of 1868 was the agreement between the United States and the Navajo that ended the Navajo’s forced exile at Bosque Redondo and established their reservation in their traditional homeland.
• C. Treaty of 1881
  The Treaty of 1881 was an agreement involving the Oto people that marked a further cession of their lands and continued the U.S. government’s policy of displacing Native American tribes from their traditional territories.
• D. Treaty of 1863
  The Treaty of 1863 was a controversial agreement that drastically reduced the Nez Perce homeland in the Pacific Northwest, paving the way for increased U.S. settlement and later conflict.
• E. Reciprocity Treaty of 1875
  The Reciprocity Treaty of 1875 was an agreement between the United States and the Kingdom of Hawaii that granted duty-free access to Hawaiian sugar in the U.S., greatly increasing American economic influence over the islands and paving the way toward eventual annexation.
• F. None of above. chosen