import ballerina.lang.system; function main (string[] args) { // XML element. Can only have one root element. xml x1 = xml `The Lost World`; system:println(x1); // XML text xml x2 = xml `Hello, world!`; system:println(x2); // XML comment xml x3 = xml ``; system:println(x3); // XML processing instruction xml x4 = xml ``; system:println(x4); // Multiple XML items can be combined to form a sequence of XML. The resulting sequence is again an XML on its own. xml x5 = x1 + x2 + x3 + x4; system:println("\nResulting XML sequence:"); system:println(x5); }