10<0 20<=0 30>0 40>=0 50<1 60<=1 70>1 80>=1 91<0 101<=0 111>0 121>=0 131<1 141<=1 151>1 161>=1 17'0'<1 18'0'<=1 19'0'>1 20'0'>=1 210<'1.2' 220<='1.2' 230>'1.2' 240>='1.2' 250<'-0.2' 260<='-0.2' 270>'-0.2' 280>='-0.2' 29false()<1 30false()<=1 310>true() 320>=true() 33'a' > 'a' 34'a' > 'b' 35'b' > 'a' 36'a' < 'a' 37'a' < 'b' 38'b' < 'a' 39'a' >= 'a' 40'a' >= 'b' 41'b' >= 'a' 42'a' <= 'a' 43'a' <= 'b' 44'b' <= 'a' 45'a' > '0.0' 46'a' < '0.0' 47