Consider the prefix out-in English:
a. Fenster ran.
b. *Fenster ran Letitia.
c. Fenster outran Letitia.
d. *Fenster outran.
Describe the effect that the prefix out- has in sentences (a)-(d). Now, think of other verbs formed with out- in English. Does out- have a consistent effect on the argument structure of verbs it attaches to?