lt;list&gt;</span> [&lt;data.frame[14 x 2]&gt;]</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $ components.attribute                 <span style="color: #949494; font-style: italic;">&lt;list&gt;</span> [&lt;data.frame[7 x 4]&gt;]</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $ components.dimension                 <span style="color: #949494; font-style: italic;">&lt;list&gt;</span> [&lt;data.frame[4 x 3]&gt;]</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $ co