Harvest classmarks
/^(?:MS\s*)?(?:Aa|Bb|Cc|Dd|Ee|Ff|Gg|Hh|Ii|Kk|Ll|Mm|Nn|Oo)\.\s*\d+(?:\.\d+)*(?:[A-Za-z0-9\-\s\(\)\.]*)$/u
/^(?:MS\s*)?Add\.\s*\d+(?:\.\d+)*(?:[A-Za-z0-9\-\s\(\)\.]*)$/u
/^(?:MS\s*)?Or\.\s*\d+(?:\.\d+)*(?:[A-Za-z0-9\-\s\(\)\.]*)$/u