{ STDOUT }
  -> STDOUT

{ $hash{$k}[$i] }
  -> $hash{$k}[$i]

{ my $x = func(); uc($x) }
  -> uc($x)

{ if ($cond) { 'FOO' } }
  -> If $cond is false, $cond.
  -> If $cond is true, 'FOO'.