An inverted question mark can appear in Luminate Online when a dash is used instead of a hyphen. A hyphen (-) is a punctuation mark that's used to join words or parts of words. A dash is longer than a hyphen and is commonly used to indicate a range or a pause. Examples of dashes are the en dash (–) and the em dash (—). It is best practice to use a hyphen in Luminate Online. When using a dash, the database can interpret that as a special character and may not always display correctly.