Anchor: i know some people who just they just went through a course uh and took the electronic grafting course
Entailed: I know people who took an electronic grafting course.
Contradiction: I know some people who electronically grafted each other. 
Contradiction: A chef teaching in a classroom.
Contradiction: A person is in mid-air.
Contradiction: Journalists tend to stay away from publishing material on drug violence.
Contradiction: Intervenor told us that on the record.