<fieldset class="c-checkbox">
    <p>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Modern Wooden Chair</span>
        </label>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Modern Soft Bacon</span>
        </label>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Fantastic Wooden Shoes</span>
        </label>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Generic Fresh Bike</span>
        </label>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Rustic Bronze Chicken</span>
        </label>
        <label>
            <input name="" value="" type="checkbox">
            <span class="wpcf7-list-item-label">Ergonomic Wooden Chips</span>
        </label>
    </p>
</fieldset>
<fieldset class="c-checkbox">
   <p> {{!-- WP Contact Form 7 generated --}}
    {{#each checkbox}}
    <label>
      <input name="" value="" type="checkbox">
      <span class="wpcf7-list-item-label">{{ checkbox.label }}</span>
    </label>
    {{/each}}
  </p>
</fieldset>
{
  "checkbox": [
    {
      "checkbox": {
        "label": "Modern Wooden Chair"
      }
    },
    {
      "checkbox": {
        "label": "Modern Soft Bacon"
      }
    },
    {
      "checkbox": {
        "label": "Fantastic Wooden Shoes"
      }
    },
    {
      "checkbox": {
        "label": "Generic Fresh Bike"
      }
    },
    {
      "checkbox": {
        "label": "Rustic Bronze Chicken"
      }
    },
    {
      "checkbox": {
        "label": "Ergonomic Wooden Chips"
      }
    }
  ]
}

Markup for this component reflects the WordPress Contact Form 7 plugin.