<offset>

<offset> that part of a relative temporal or spatial expression which indicates the direction of the offset between the two place names, dates, or times involved in the expression. 13.2.3 Place Names
組件namesdates — 13 Names, Dates, People, and Places
屬性 att.typed (@type, @subtype)
屬於 model.offsetLike
可包含
gaiji: g
宣告
element offset { att.global.attributes, att.typed.attributes, macro.xtext }