universal famyma'o: terminates the most recently opened construct or clause.
cu'au looks back for the most recently opened construct that has not been terminated, and emulates whatever famyma'o would terminate it. It can also be subscripted with xi, and will terminate that many times. Note that that means grammatical function is being put in a xi clause, so be careful when using it. Additionally, cu'au xi ro will terminate all the way up to the last sentence-starting word (.i mi klama lo zarci pe lo pendo be mi cu'au xi ro -> .i mi klama lo zarci pe lo pendo be mi cu'au-be'o-ku-ge'u-ku-vau). This will also terminate to sentences started in lu (will NOT emulate li'u UNLESS used multiple times), ni'o, and no'i. It will NOT emulate le'u. In addition to ro, it can be subscripted with da'a, which terminates to the sentence level, minus 1. In the previous example, this would just leave the vau remaining, and allow you to continue to add to the place structure of klama.