ine is the
        number of coincident sites.  Each remaining line starts with the point ID of
        an input site, followed by the point ID of a coincident point, its region, and distance.
        Includes deleted vertices which
        indicate highly degenerate input (see'<a href="qh-optf.html#Fs">Fs</a>').
        Do not use '<a href="qh-optq.html#QJn">QJ</a>' with 'FP'; the joggle will separate
        coincident sites.</dd>
    <dt><a href="qh-optf.html#Fx">Fx</a></dt>
    <dd>list extreme points o