How to use `React.createElement` children parameter (without jsx)

The children passed to a component, either via JSX nesting or via the third+ argument to React.createElement, shows up in the component as this.props.children:

var MyLabel = React.createClass({
  render: function() {
    return React.createElement("label", {className: "label"},
      React.createElement("span", {className: "label"}, this.props.label),
      this.props.children
    );
  }
});

var App = React.createClass({
  render: function() {
    return React.createElement(MyLabel, {label: "Here is the label prop"},
      React.createElement("div", {},
        React.createElement("input", {type: "text", value: "And here is a child"})
      )
    );
  }
});

Example: http://jsfiddle.net/BinaryMuse/typ1f2mf/; docs: http://facebook.github.io/react/docs/multiple-components.html#children