<svg width="200px"
  height="300px"
  viewBox="0 0 200 300"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  version="1.1"
>
  <circle cx="30" cy="30" r="20" style="stroke: black; fill: none;"/>
  <circle cx="80" cy="30" r="20"
    style="stroke-width: 5; stroke: black; fill: none;"/>

  <ellipse cx="30" cy="80" rx="10" ry="20"
    style="stroke: black; fill: none;"/>
  <ellipse cx="80" cy="80" rx="20" ry="10"
    style="stroke: black; fill: none;"/>
</svg>