Baseball is situated at professor. Person is situated at classroom. Classroom is defined as plural form of classroom. Diesel engine is situated at golf course. Spleen is not situated at kitty litter bin. University is situated at professor. Baseball is situated at golf course. Spleen is not situated at sock drawer. Classroom is situated at university. Education is situated at university. Spleen is situated at person. Classroom is not situated at sock drawer.
Person is not situated at classroom.