ReplacementData.xml

<?xml version="1.0" encoding="UTF-8"?>

<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<entities xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:mftf:DataGenerator/etc/dataProfileSchema.xsd">
    <entity name="simpleData" type="simpleData">
        <data key="firstname">John</data>
        <data key="lastname">Doe</data>
        <data key="middlename">Tiberius</data>
        <data key="favoriteIndex">0</data>
        <array key="street">
            <item>7700 West Parmer Lane</item>
        </array>
    </entity>
    <entity name="uniqueData" type="simpleData">
        <data key="firstname" unique="prefix">John</data>
        <data key="lastname" unique="suffix">Doe</data>
    </entity>
    <entity name="testEntity" type="sample">
        <data key="sampleField2">moreData</data>
        <requiredEntity type="test2">originalValue2</requiredEntity>
    </entity>
    <entity name="offset" type="simpleData">
        <data key="x">200</data>
        <data key="y">300</data>
    </entity>
    <entity name="emptyData" type="backend">
        <data key="noData"></data>
        <data key="definitelyNoData"/>
    </entity>
</entities>