Premise: Ichikawa Junior and Senior High School (市川中学校・高等学校 , Ichikawa Gakuen ) is a large (2500 students) private school in Moto-kita-kata (本北方), Ichikawa, Chiba, Japan. The school is sometimes mistaken for a public school due to its name: "Ichikawa Junior High School", "Ichikawa High School" or "Ichikawa" for short. The private school is managed by the Ichikawa Gakuen School Corporation.
Hypothesis: The Ichikawa Gakuen School Corporation manages all private schools in Moto-kita-kata, Ichikawa, Chiba, Japan.