(By Jeremy Collins and Jay Latarche): "For this feature, we are looking for polar interrogation marked by a question particle and verbal morphology. These should be the only two markers in the construction. However, this does not have to be the only construction in the language which can mark polar interrogation. Nominalizers also count as verbal morphology for the purpose of this question. Tone does not count as a particle here. The intonation of the clause is not relevant to this question. It may be the same as or different from declarative clauses."