1 INSPECT identifier-1 TALLYING 2+ 2 identifier-2 FOR 2.1+ 2.1.0 CHARACTERS 2.1.0.1+ 2.1.0.1? %phrase 1 2.1.0.0 ALL 2.1.0.0 LEADING 2.1.0.1+ 2.1.0.1.0 identifier-3 2.1.0.1.0 literal-1 2.1.0.1.1+ 2.1.0.1.1? %phrase 1 phrase 1: 1 BEFORE 1 AFTER 2? INITIAL 3 identifier-4 3 literal-2