CygWin: apt-file alternative?

The tool is cygcheck

$ cygcheck -p pandoc
Found 13 matches for pandoc
....

Or you can use the search at https://cygwin.com/packages/

but the results give no indications that a pandoc program is available in any Cygwin packages. See details on: https://cygwin.com/cgi-bin2/package-grep.cgi?grep=pandoc&arch=x86_64

$ cygcheck -p bin/pandoc
Found 0 matches for bin/pandoc