Suppose In the Harry Potter series by J.K. Rowling, Hogwarts School of Witchcraft and Wizardry is a fictional British school of magic for students aged eleven to eighteen, and is the primary setting for the first six books in the series. The school was founded by two wizards, Godric Gryffindor and Salazar Slytherin, with two others, Rowena Ravenclaw and Helga Hufflepuff, joining them.
Can we infer that "The four founders of Hogwarts were all friends who got along well"? Yes, no, or maybe?