premise: Plainfield South High School, or PSHS, is a four-year public high school located in Joliet, a southwest suburb of Chicago, Illinois, in the United States. It is part of the Plainfield Community Consolidated School District 202, which also includes three other high schools: Plainfield Central High School, Plainfield North High School and Plainfield East High School.
hypothesis: PSHS is in south west of Chicago
reason: PSHS is in Joilet which is south west of Chicago