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    puts  %w{apple pear banana}.map {|f| "#{f} is a fruit."}.join(' And ')

    % ruby
    supercalifragilisticexpialidocious = "something quite attrocious"
    puts "I'm thinking of #{supercalifragilisticexpialodocious}."
    ^D
    -:2: undefined local variable or method `supercalifragilisticexpialodocious' for main:Object (NameError)

    % ruby
    count_str = "8"
    count = count_str.to_i
    puts count < 9
    puts count_str < 9
    ^D
    true
    -:4:in `<': comparison of String with 9 failed (ArgumentError)

    % perl
    use strict;
    my $count_str = "8";
    my $count = 0 + $count_str;
    print $count < 9; print "\n";
    print $count_str < 9; print "\n";
    ^D
    1
    1