How to specify multiple prices for a product if the price depends on the size?

Question

Yandex Market Language

Good day. The product has several prices depending on the size. I looked through all the documentation, I did not find anything similar. Maybe someone came across a similar case. As it seems to me (but Yandex is unlikely to like it):

<offers>
      <offer id="345925">
        <name>Товар №1</name>
        <vendor>Polimoly</vendor>
        <url>http://shop.seller.ru/products/342995</url>
          <price>
            <value>7500</value>
            <param name="размер">20x30x5</param>
          </price>
          <price>
            <value>8600</value>
            <param name="размер">50x70x8</param>
          </price>
          <price>
            <value>11700</value>
            <param name="размер">120x150x10</param>
          </price>
        <param name="sku">DF43DF3FD43D</param>
        <currencyId>RUR</currencyId>
        <categoryId>3</categoryId>
        <picture>http://media.seller.ru/shop/342995_large.jpg</picture>
        <description>Супер-мупер плитка</description>
      </offers>
    </offers>

Answer 1

Give as a separate item

Answer 2

There is another option (but it does not suit):
" In some categories (if the price list is transmitted in YML format), it is permissible to indicate the initial price" from "- using the from="true" attribute. "
But if this is the maximum that can be done, maybe you have to put up with it...