The IfcTextFontName is a list of font family names and/or generic family name.
Values of : The name of a font family of choice. For example, "gill" and "helvetica" are font families.
Values of : In the example above, the last value is a generic family name. The following generic families are defined: > * 'serif' (Example: Times)
'sans-serif' (Example: Helvetica)
'cursive' (Example: Zapf-Chancery)
'fantasy' (Example: Western)
'monospace' (Example: Courier)
It is encouraged to offer a generic font family as a last alternative.