<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
    <path d="M4 18l8.5-6L4 6v12zm9-12v12l8.5-6L13 6z"/>
    <path d="M0 0h24v24H0z" fill="none"/>
</svg>