code: public <E> T value(E value) {
  		PatternExpression px = (PatternExpression)this.astNode;
  		PatternProperty prop = px.getLastElement().getLastProperty();
  		prop.setValue(value);
  		return this.element;
  	}
docs: <div color='red' style="font-size:24px;color:red"><b><i><u>JCYPHER</u></i></b></div>
  <div color='red' style="font-size:18px;color:red"><i>specify a property value (of a node or relation) to be matched or created in a pattern;</i></div>
  <div color='red' style="font-size:18px;color:red"><i>takes a primitive java value like a String or a Number</i></div>
  <div color='red' style="font-size:18px;color:red"><i>e.g. MATCH.node(n).property("name").<b>value("John")</b></i></div>
  <br/>