"><I><B>Boolean</B></I></SPAN></FONT></SPAN><SPAN STYLE="text-decoration: none">     </SPAN>
<SPAN STYLE="text-decoration: none">   </SPAN><SPAN STYLE="text-decoration: none"><FONT SIZE=4 STYLE="font-size: 16pt"><SPAN LANG="en-US"><I><B>entry</B></I></SPAN></FONT></SPAN><SPAN STYLE="text-decoration: none"><FONT SIZE=4 STYLE="font-size: 16pt"><SPAN LANG="en-US">: if </SPAN></FONT></SPAN><SPAN STYLE="text-decoration: none"><FONT SIZE=4 STYLE="font-size: 16pt"><SPAN LANG="en-US"><I>stiff </I></SPAN></FONT></SP