Question: What country does Artichoke River and West Newbury, Massachusettshave in common?

Context paragraphs:
Newbury (town), Vermont: Newbury is a town in Orange County, Vermont, United States.  The population was 2,216 at the 2010 census.  Newbury includes the villages of Newbury, Center Newbury, West Newbury, South Newbury, Boltonville, Peach Four Corners, and Wells River.  The town maintains a public website that is updated regularly.

Wash Common: Wash Common is a small suburb to the south of Newbury, Berkshire.  It is built on the former Newbury Wash, which was flat open heathland overlooking Newbury, and until the 19th century there was just a small group of houses separated from Newbury by open country.  Both places have grown into each other, and the suburb of Wash Common is now continuous with Newbury.  Most housing development has taken place to the west of the Andover road, and some of the area to the east of the road still remains open farmland.

Brookston, Minnesota: Brookston is a city in Saint Louis County, Minnesota, United States; located along the Saint Louis River, opposite the mouth of the Artichoke River.  The population was 141 at the 2010 census.

West Newbury, Massachusetts: West Newbury is a town in Essex County, Massachusetts, United States.  Situated on the Merrimack River, its population was 4,235 at the 2010 census.

West Newbury Village Historic District: The West Newbury Village Historic District encompasses the modest rural country village of West Newbury, Vermont.  It is located at the junction of Tucker Mountain, Snake, and Tyler Farm Roads, and is relatively little altered since its 19th-century development.  It was listed on the National Register of Historic Places in 1983.

Pentucket Regional School District: Pentucket Regional School District is a three town regional school district, formed by the towns of Groveland, Merrimac, and West Newbury, Massachusetts.  Elementary schools are located in each town, and the middle/high school campus is located mostly in West Newbury, Massachusetts, United States and partially in Groveland, Massachusetts, United States.  The schools give students to learn one of the three languages of Spanish, German, and Latin.  Its administrative offices are housed in the middle school at 22 Main Street, West Newbury, Massachusetts.

Pentucket Regional High School: Pentucket Regional High School (often abbreviated as "PRHS") is a public high school in West Newbury, Massachusetts, United States, which serves the communities of Groveland, Merrimac, and West Newbury.  It is the only high school in the Pentucket Regional School District.  As of 2014, the school's principal is Jonathan P. Seymour and assistant principals are Daniel E. Thornton, who is also the athletic director, and Frank Kowalski.

Artichoke River: The Artichoke River is a 13.5 mi tributary of the Saint Louis River in northeastern Minnesota in the United States.

Artichoke River (Massachusetts): The Artichoke River (1.2 mi long), is a tributary of the Merrimack River in Massachusetts in the United States.  It is in Essex County, Massachusetts, and flows generally north, marking the boundary between West Newbury and Newburyport.  The Upper and Lower Artichoke reservoirs are impoundments of the river that acts as a water source for nearby towns.

West Newbury, Vermont: West Newbury is a small unincorporated village in the town of Newbury, Orange County, Vermont, United States.  The community is 3.5 mi west-southwest of the somewhat larger village of Newbury.  West Newbury has a post office with ZIP code 05085.

Supporting paragraphs: Artichoke River (Massachusetts) West Newbury, Massachusetts
Answer: United States