in reply to words wich ends with "f"
I'd go with something like this (yeah, TIMTOWTDI):
$s = "four fifth two frog left leaf fred wolf";
@f = grep (/^[^f]\w*f\w*$/, split(' ', $s));
There is no Extraterrestrial life
There aren't any suitably capable Extraterrestrials
Interstellar travel is too difficult
We're too uncool / not worth the trouble
What do you mean they haven't visited?
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