This feature (based on WALS feature 116, by Matthew S. Dryer) concerns the way in which polar questions (also called yes-no questions) are coded. The most common coding types are intonational coding and segmental coding (by a particle or by an affix on the verb). In addition to segmental and intonational marking, polar questions may be marked by special word order (as in English) and by an A-not-A pattern (as in Mandarin Chinese). "Only interrogative intonation" means that a polar differs from a declarative sentence only by intonation.