Remember that you can build goals on top of these. This is just informative for people who already model things in logic programming languages. Nothing stoppin

Remember that you can build goals on top of these. This is just informative for people who already model things in logic programming languages. Nothing stopping you from creating your own goal: `first_name(Name, Person) :- person(Person), person_name(Person, first, Name).` and calling it `first_name("Titus", P).`