意味ツリーを表現するために再帰的に定義されたオブジェクト。 Public Class Phrase Inherits Sentence Private childPhrase As New Collection '子フレーズ Public myFootNote As New Collection '脚注フレーズ Public myFigure As New Collection '図 Private myTable As New Collection '表 Public bLinked As Boolean = False Private bDirection As Boolean '方向 Private nLabel As Integer 'ラベル Private syntaxP As New SyntaxProduction