Question: Which public high school did Jim Beattie star in?

Context paragraphs:
Star City High School: Star City High School is a comprehensive public high school for students in grades 9 through 12 located in Star City, Arkansas, United States.  Star City High School is the only public high school in Lincoln County and the only high school of the Star City School District.

Kunshan Zhenchuan High School: Kunshan Zhenchuan High School is a public high school founded in 1997.  The school is named after the famous Ming essayist Gui Youguang, who is also called Gui Zhenchuan.  Zhenchuan High School became a key high school in Jiangsu Province in 1998 and then became a Three Star High School in Jiangsu in 2003.  Later in 2004, it became a Four Star High School in Jiangsu.

Jim Ned High School: Jim Ned High School is a public high school located in Tuscola, United States and classified as a 3A school by the UIL.  It is part of the Jim Ned Consolidated Independent School District.  The high school serves approximately 330 students from approximately 380 square miles in southeastern Taylor County, including the towns of Tuscola, Buffalo Gap, and Lawn.  A small portion of northeastern Runnels County lies within the district also.  The district and the school are both named after the Jim Ned Creek which runs through all three towns.  The creek is named after Jim Ned who was an Indian cavalry scout for the United States Army.  In 2015, the school was rated "Met Standard" by the Texas Education Agency.

Lower Merion High School: Lower Merion High School is a public high school in Ardmore, a community in Philadelphia's Main Line suburbs.  It is one of two high schools in the Lower Merion School District; the other one is Harriton High School where NBA star, Kobe Bryant played at.  Lower Merion serves both Lower Merion Township and the Borough of Narberth.  In 2005 it was ranked among the top sixty public or private U.S. high schools by "The Wall Street Journal".  Its athletics teams are known as the "Aces," but the football team is called the "Bulldogs".

Cutter–Morning Star High School: Cutter–Morning Star High School is a comprehensive public secondary school located in Hot Springs, Arkansas, United States.  Cutter–Morning Star serves more than 300 students in grades 7 through 12.  Cutter–Morning Star is one of eight public high schools in Garland County and is the sole high school administered by the Cutter–Morning Star School District.  The Cutter–Morning Star has won two national Quiz Bowl championships and its sports teams have won 18 state championships.

Jim Beattie (baseball): James Louis Beattie (born July 4, 1954) is a former Major League Baseball pitcher.  He also served as the Montreal Expos' General Manager from to , and was the Baltimore Orioles general manager with Mike Flanagan from to .  As of 2010 , Beattie is serving as a professional scout in the Toronto Blue Jays organization.  Beattie starred in baseball and basketball at South Portland High School in South Portland, Maine.

South Portland High School: South Portland High School is a public high school located in South Portland, Maine.

Star School (Texas): Star High School or Star School is a 1A public high school located in Star, Texas (United States).  It is part of the Star Independent School District located in east central Mills County.  Star School has all grades (K-12) in one building with students attending from portions of Hamilton and Lampasas counties along with Star.  In 2011, the school was rated "academically acceptable" by the Texas Education Agency.  Star School is scheduled to consolidate with a neighboring district after the 2013-14 school year.

High Tech High School: High Tech High School is a full-time magnet public high school serving students in ninth through twelfth grades, located in North Bergen, in Hudson County, New Jersey, United States, operating as part of the Hudson County Schools of Technology.  Since its establishment in 1991, High Tech High School has been named a Top Ten High School, a Governor's School of Excellence, a New Jersey Star School (twice) and has been cited by "New Jersey Monthly" magazine as one of the state's great public high schools.  The school is noted for success in the sciences and in the performing arts (winning several awards in both fields).

Miller High School (Corning, Ohio): Miller High School (MHS) is a public high school located in Corning, Ohio.  Named after doctors Bob and Jim Miller, MHS opened in January 1964.  It is the only secondary institution in the Southern Local School District, which was formed in 1961 with the consolidation of the Corning, Shawnee, Moxahala, and New Straitsville School Districts.  The home of the falcons, Miller High School's official colors are purple and white.  In 1993, a new building project established the Miller Middle School and the Millcreek Elementary School on the same premises as Miller High School, bringing the entire campus under one roof.

Supporting paragraphs: Jim Beattie (baseball) South Portland High School
Answer: South Portland High School