Many people might have difficulties correctly assessing their tritype because of the vague descriptions and the amount of enneatypes involved. For this reason, I've written all the possible lines and nodes one tritype may have to make things easier (or worse? I dunno).
This is all the 27 potential combinations of connections that one may have in its tritype. Each tritype has 3 combinations of connections. Taking the 125 tritype for example, we have 1+2, 1+5 and 2+5 as individuals links forming the Mentor Archetype. So if you'll want to see 3 different connections for correctly identifying your personal tritype. Red colored connections represent nodes, which are two enneatypes next to eachother. The are only 3 types of nodes (1+2, 4+5 and 7+8) and the naturally enhance the connection between the two enneatypes, especially if the individual has a matching wing (1w2 with a 125 tritype, for example). Blue colored text indicate a natural line of connection between two enneatypes. This means that the line will be enhanced and therefore more powerful in the individual's personality. For example, the 137 tritype has a natural enhanced line between 1 and 7, so the two energies will be really apparent, especially is said person is a core 1 or 7).
Here you go! Hope you will comment and appreciate!