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    my $x = $condition ? $a : $b;
    
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    (my $x = $condition) ? $a : $b
    
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    # program (note that Perl 6 uses ??!! instead of ?:)
    1 ?? $_ = 3 !! $_ = 5
    
    # output from the Perl 6 standard grammar:
    Precedence of = is too loose to use between ?? and !!; please use pare
    +ns around inner expression at ...