There are nine frames on this page, three on the top row, three in the middle and three on the bottom. The columns are defined with the frame tag and, typically, the centremost frame carries the brunt of examples.
<frameset rows="5%, 90%, 5%" frameborder="yes" frameborder="1" framespacing="20">
<frameset cols="5%,90%,5%" frameborder="no" frameborder="0">
<frame src="fred.htm">
<frame src="fyellow.htm">
<frame src="fgreen.htm">
</frameset>
<frameset cols="5%,90%,5%" frameborder="no" frameborder="0">
<frame src="faqua.htm">
<frame name="center" src="fset3txt.htm">
<frame src="fblue.htm">
</frameset>
<frameset cols="5%,90%,5%" frameborder="no" frameborder="0">
<frame src="fmaroon.htm">
<frame src="fteal.htm">
<frame src="flime.htm">
</frameset>
</frameset>