BOISE, Idaho (AP) – The West Ada School District in southwest Idaho has put a National Book Award winning novel back in the curriculum after removing it six months ago amid parent complaints.

Trustees on Tuesday voted unanimously to put “The Absolutely True Diary of a Part-Time Indian” by Sherman Alexie on the supplemental reading list that teachers can select from.

The novel is narrated by a 14-year-old whose transfer makes him the only Native American in an all-white school. Objections are based on discussions of sex, abuse, alcoholism, or on racist or profane statements from characters.

Parents will have to give permission for their children to read the book, and instruction will be limited to small groups.

The book can’t be read aloud because students who haven’t received parental permission might hear it.