"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” este o frază în limba engleză, folosită ca un exemplu de ambiguitate lexicală, cât și pentru evidențierea rolului semnelor de punctuație, care sunt menite să redea în scris intonația, accentul și pauzele la care omul apelează în timpul vorbirii.