请将以下国际法专业文献中的段落翻译为中文。 Characterization is a two—step process in property cases．First the court must decide whetheror not the case presents a property problem．Then it must determine whether interest involred is a“movable”or an“immovable”．The basic test for distinguishing“movable”and“immovable”iswho closely the particular interest is concerned with land．