{$try {
    {$/ 4 0}
} {
    {$stdout writeln $_}
} {
    {$stdout writeln {}}
}}

try receives a list of statements and runs it.

If an error condition is triggered, a second list of statements is executed.

Finally, a third list of statements is executed.

If only one lists of statements has been specified, error conditions triggered by the first list of statements are silenced.