x1 (text) is a lujvo with meaning x2 and arguments x3, and which is constructed from tanru/veljvo x4 such that at least one element of the veljvo is ultimately not a cmavo (including "{zei}", "{ke}"/"{ke'e}", "{bo}", etc.), gismu, or rafsi of such cmavo or gismu.
x1 (text) is a lujvo with meaning x2 and arguments x3, and which is constructed from tanru/veljvo x4 such that each element of the veljvo is ultimately only a cmavo (including "{zei}", "{ke}"/"{ke'e}", "{bo}", etc.), gismu, or rafsi of such cmavo or gismu.
x1 (possibly indirectly) cites x2, via intermediate citation path x3 (ordered list; ce'o), for information/statement x4, such that said x2 is the ultimate source (along path x3) for said information/statement x4.
mekso unary or binary operator: ordered inputs (n, b) where n and b are nonnegative integers and b > 1; output is the ultimate digital root of n in base-b.
x1 is infected/contaminated by something which was infected/contaminated by something which was infected/contaminated by ... which was infected/contaminated by x2, regarding/pertaining to contagion x3 and via means of transmission x4, through intermediary nodes x5 (ce'o list).
x1 = sitna1 = utka1
cites/quotes/refers to/makes reference to a source, which itself/who themself cites/quotes/refers to/makes reference to a source, which itself/who themself in turn cites/quotes/refers to/makes reference to source, ..., which itself/who themself cites/quotes/refers to/makes reference to source x2 = sitna2 = utka2, via intermediate path-connecting steps x3 = utka3 (ordered list; ce'o), all for the same information/statement x4 = sitna3 (du'u).
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).
x1 and x2 are path-linked by directed binary predicate x3 (ka) via intermediate steps x4 (ordered list; ce'o), such that no other node exists in the graph (x5) to which x2 is connected in the same way/direction as x1 is (possibly-indirectly) connected to x2 via x3 (id est: as being such that x2 is the first argument of the x3 and the hypothetical other node is the second argument thereof).