$ perl -e 'print cat'   # Doesn't print anything. But 1 bareword is OK
$ perl -e 'print cat dog' #Doesnt like two barewords
Can't locate object method "cat" via package "dog" at -e line 1.
$ perl -e 'print reverse cat' #Prints cat. OK with one again.
cat$ perl -e 'print reverse cat dog' # Still hates two
Can't locate object method "cat" via package "dog" at -e line 1.