x1 is a (general(ized)) heirarchical/pyramidal/directed tree-graph structure on underlying set x2 via partial ordering relation x3 (see notes for default properties).
x3 is, by default, such that the direction is from the common ancestor, root, or superior to each of its descendants, children nodes (ultimately: leaves), or inferiors. Combine with familial terms for generalized analogs of those terms (this word representing a generalized family tree); for example: "2 via relation/partial ordering x3; x1 is either (in a narrow sense) a direct subordinate of the direct boss/superior/manager of x2's direct boss/superior/manager, or is (in a broader sense) an equal-level co-worker of x2's direct boss/superior/manager (no matter the exact relation).">jibytreicyfamti" for "work-heirarchy aunt/uncle". See also: "grafu", "tseingu", "lanzu", ".utka"; like "grafnseljimca", but more focussed on the heirarchical structure/relations and less on the mathenatical network or its properties (also, this word is inherently directed).