In the first task of LS4 the student has to develop a meaning representation of the sentence "The collector possesses a sculpture made of white marble." (German: "Der Kunstsammler besitzt eine Skulptur aus weißem Marmor.")
For this purpose he has to use MWR. This tool allows the student to draw the graphical representation of a semantic network with a few mouse clicks. Once the student is finished, he can make MWR analyze his solution and check it against a model solution. MWR will point to inconsistent parts in the student's network and suggest corrections.
Then the student can try to solve the task again. This cycle is finished when the representation (i.e. the solution) is correct.