Property:Has age range

This is a property of type Has type::String.

The allowed values for this property are:
 * Allows value::all ages
 * Allows value::3-5 (PreK-K)
 * Allows value::5-8 (grades 1-2)
 * Allows value::8-11 (grades 3-5)
 * Allows value::11-14 (grades 6-8)
 * Allows value::14-18 (grades 9-12)
 * Allows value::18+ (adult)
 * Allows value::65+ (senior)