The descendant of keyword checks if a concept is a descendant of another concept.
Syntax
concept_a descendant of concept_b
Returns
A boolean value that indicates if concept_a is a descendant of concept_b.
Examples
'Europe'.'the Netherlands'.'Amsterdam' descendant of 'Europe'
/* returns true */
'Europe'.'the Netherlands'.'Amsterdam' descendant of 'Asia'
/* returns false */
'colors'.'blue' descendant of 'colors'
/* returns true */
'Albums'.'Joni Mitchell'.'blue' descendant of 'colors'
/* returns false */
