Be a tiddler of json type whose content is
and now put it in two tiddlers. one is "project" and the othes is "$:/temp/project".
create a tw5 tiddler with this code:
$:/temp/project: {{{ [[$:/temp/project]getindex[/pleiade]] }}}
project: {{{ [[project]getindex[/pleiade]] }}}
and see its outupt: