get property list from item type, issue reading the result item

hello,

i want to get a list of names of propreties that start a certain way 'z%'. i've found aml that was supposed to do it, i' made an iom code to recrate that aml (actually creates the right aml). But what i get is only one item, so i want to know if the aml is actually good or if there is a specific way to get the properties from that one item i get.

<AML>
<Item action="get" type="itemType" select="name" where="ItemType.name = 'ZFCcontrainteTemplate'">
	<name>part</name>
	<Relationships>
		<Item type="property" action="get" select="value, label" where="[property].label like 'z%'" />
	</Relationships>
</Item>
</AML>

var FCitemType = inn.newItem("itemType", "get");
// FCitemType.setProperty("name","FCcontrainteTemplate");
// FCitemType.setAttribute("select", "name");
FCitemType.setAttribute("where", "[itemType].name like 'ZFCcontrainteTemplate'");


var property = FCitemType.createRelationship("property", "get");
property.setAttribute("select", "label");
property.setAttribute("where", "[property].label like 'z%'");

console.log("FCitemType before apply: "+FCitemType.ToString());
FCitemType = FCitemType.apply();

thanks

lucas