(By Jeremy Collins and Jay Latarche): "This feature deals with the presence or absence of a construction where the only difference between the interrogative and the declarative is marked by tone. Please note that tone is the focus here, not intonation. Tonal marking is bound to a certain position in the clause (e.g. the final syllable, or a certain constituent). Intonation concerns the whole clause and will have a variation in pitch across sentences and phrases."