$, = " ";
print I => do => not => think => so => "\n";
__END__
I do not think so
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As for qw, it is a quoting construct, like q, qq, etc. It's "argument" (which doesn't include the delimiters - the delimiters are eaten by the parser) is treated as a string and split on whitespace. What results is a list of strings.

Note that as soon as the parser consumed it, the delimiters are gone, and they never return. Delimiters are there just there to tell the parser, "start here" and "stop here". It doesn't make sense for qw to return "quoted words", just like it doesn't make sense to let qw return yellow.

Abigail