The root cause of the ambiguity of "Fenbie-construction" is the flexibility of the distributive operator "Fenbie" . However

the sentence pattern and deep semantic controlling factors of "Fenbie-construction" can limit the flexibility of "Fenbie"

thus causing some sentences to be ambiguous and some not. It also leads to the difference in the number of ambiguities of the same sentence pattern. When two subjects correspond to two objects

as long as there is a one-way non-facultative between subjects and objects

the sentence will not have the ambiguity. Otherwise

there is the ambiguity. In this case

the number of ambiguities is related to whether the time sequence between subjects and subjects

objects and objects is clear

and whether the ambiguous relationship will affect the meaning of the sentence in its context. When multiple subjects correspond to multiple objects

there is no ambiguity only when at least one bidirectional non-facultative is formed.