Fill in the blanks with the appropriate word, phrase, or symbol(s) from the following list.
$\begin{array}{llllll}\text { unique } & \text { dependent } & \text { consistent } & \text { inconsistent } & \text { intersecting } & \text { ordered } \\ \text { variable } & \text { perpendicular } & \text { parallel } & \text { same } & \text { pair }\end{array}$
For a system of equations with three equations and three variables, the solution is an __________ triple.