Here are two sentences:

Toronto yesterday had 64 probable cases of SARS and nine suspect cases .

As of Wednesday , there were 65 probable SARS cases in the Toronto region .

no

Here are two sentences:

The number of passengers aboard was not known and may never be , since ferry operators rarely keep full passenger lists .

The exact number of passengers on the ferry was not known and may never be determined because ferry operators typically do not keep accurate passenger manifests .

yes

Here are two sentences:

One of the Commission 's publicly stated goals is to ensure other producers ' server software can work with desktop computers running Windows as easily as Microsoft 's .

The Commission has publicly said one of its goals is to ensure other producers ' server software can connect to desktop computers running Windows as easily as Microsoft 's can .
yes