true < null; // expect runtime error
true < true; // expect runtime error
true < "s"; // expect runtime error
true < 123; // expect runtime error

null < null; // expect runtime error
null < true; // expect runtime error
null < "s"; // expect runtime error
null < 123; // expect runtime error

123 < null; // expect runtime error
123 < true; // expect runtime error
123 < "s"; // expect runtime error

"s" < null; // expect runtime error
"s" < true; // expect runtime error
"s" < 123; // expect runtime error