If

If a Leader makes a mistake, it is a New Movement.
If an Engineer makes a mistake, it is a New Construction.
If a Film maker makes a mistake, it is a New Trend.
If a Scientist makes a mistake, it is a New Invention.
If a Musician makes a mistakes, it is a New Tune.
If a Tailor makes a mistake, it is a New Fashion.
If a Painter makes a mistake, it is a Modern Painting.
If a barber makes a mistake, it is a  New Style.
BUT
If a Student makes a mistake, it is a Mistake.