x_{1} is a proposition/predication (statement with a truth value), stating that x_{2} is true

Brivla-form of du'u. x_{1} and x_{2} are identical (filling them would equate the two sumti). See fatci, jetnu, jitfa, jufra, bridi, nundumu

- du'umrei
- x
_{1}(du'u with kau) is the indirect question of predicate relation x_{2}(ka), with answers x_{3}(sumti sequence) - li'imdu
- x
_{1}(li'i) is the subjective conscious experience of x_{2}(nu or ka-of-x_{3}), as experienced by x_{3} - nildumu
- x
_{1}(ni) is a quantity - si'omdu
- x
_{1}(si'o) is an idea/concept/thought about x_{2}(object/abstract) by thinker x_{3}. - sumdaiklei
- x
_{1}(mass) is the object type of argument object x_{2}, as defined by property x_{3}(ka) - su'umdu
- x
_{1}is the predicate abstraction described by text x_{2}, and is of type x_{3}