The teacher sets the structure of the sentence, e.g. subject, verb, object, adverbials. Additionally, the tense of the verb should be set. All the students make a table with the parts of the sentences above. Now everybody starts with the subject, then they fold the sheets so that the word can't be seen and hand it on to the next. Thus the students continue till the last field of the table is filled in. Finally, the certainly funny sentences can be read.