% atoms `hello.` -> hello. `mixed_Case.` -> mixed_Case. `'quoted atom'.` -> 'quoted atom'. % numbers `42.` -> 42. `3.1415.` -> 3.1415. `2.998e+08.` -> 2.998e+08. `-37.` -> -37. `-8.734.` -> -8.734. `-1.4e+06.` -> -1.4e+06. `9e-11.` -> 9e-11. % strings `"double quoted string".` -> "double quoted string". `\`back quoted string\`.` -> `back quoted string`. % compound terms `foo(a,b,c).` -> foo(a,b,c). `hello :- true.` -> (hello :- true). `1+2.` -> 1+2. `(:-).` -> (:-). `@mndrix.` -> @mndrix.