Kerstyn MacLellan will omit a common introductory phrase from her graduation speech Friday at Advocate District School — fellow graduates. MacLellan, 18, is the lone graduate at the Advocate Harbour school, which has 56 students in grades primary to 12. She’s probably heard all the cliches: a class of her own, one of a kind, the one and only. But it doesn’t seem to bother her. “At graduation, the graduates usually sit on the stage,” MacLellan said. “I’ll be the only one this year, so I’ll be doing the valedictory speech. “I don’t think there is any problem. I feel...