<listitem><para><literal>Missing</literal> is the number of package names that were referenced in
a dependency but were not provided by any package. Missing packages may
- be in evidence if a full distribution is not accessed, or if a package
+ be an evidence if a full distribution is not accessed, or if a package
(real or virtual) has been dropped from the distribution. Usually they
are referenced from Conflicts or Breaks statements.</para>
</listitem>