+<h2>MCD graph:</h3>
+<div id="mcd"></div>
+
+<h2>MLD graph:</h2>
+<div id="mld"></div>
+
+<h2>SQL instructions:</h2>
+<div id="sql"></div>
+
+<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
+<script src="parser.js"></script>
+<script>
+ let er =
+ new ErDiags(`
+ [Musician]
+ +id integer
+ name
+ band
+ role varchar not null
+
+ [Instrument]
+ +name
+ family varchar not null default "Brass"
+
+ [Piano]
+ type
+
+ [Guitar]
+ type
+
+ {Play}
+ Musician +
+ Instrument *
+ --
+ event
+
+ is_a
+ Instrument Piano Guitar
+ `);
+ er.drawMcd("mcd"); //,"bubble"
+ er.drawMld("mld");
+ er.fillSql("sql");
+</script>