"James while John had had had had had had had had had had had a better effect on the teacher" is an English sentence used to demonstrate lexical ambiguity and the necessity of punctuation, which serves as a substitute for the intonation,stress, and pauses found in speech.
James while John had had had had had had had had had had had a better effect on the teacher – zdanie w języku angielskim demonstrujące wieloznaczność wypowiedzi i konieczność stosowania interpunkcji jako wyznacznika intonacji, akcentu i przerw stosowanych w mowie ludzkiej.