Add optional variations for this keyword. Example: For a 'city' add alternatives 'town', 'municipality' etc. Points will be awarded if the user includes any of the specified alternatives.
Percentage that's necessary for mastering. Setting the mastering percentage below 100 % will lower the maximum possible score accordingly. It's intended to give some leeway to students, not to "graciously accept" solutions that do not contain all keywords.
By default, line breaks will be replaced with a space character. If you want to check for line breaks, e.g. in regular expressions, you can set a different replacement here.
