bsp&nbsp&nbsp&nbsp&nbsp <b>A1</b>: <i>thing understood</i><br>
&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp <b>A2</b>: <i>attribute of arg1</i><br>
<h4>Example: </h4>
&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp <font size=2>La biosfera <b>comprende</b> la totalidad de los biomas de la Tierra -- la totalidad de los lugares donde la vida es posible -- desde las monta&#241;as m&#225;s altas a las profundidades oce&#225;nicas .</font><br><br>
&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp <b>A0</b>: La biosfera  <br>
&nbsp&nbsp&nbsp&nbsp&