%%% outline %------------------------------------------------------------------------- \begin{tikzpicture} { \node [anchor=west,inner sep=2pt] (s1) at (0,0) {$s_1$:在}; \node [anchor=west,inner sep=2pt] (s2) at ([xshift=2em]s1.east) {$s_2$:桌子}; \node [anchor=west,inner sep=2pt] (s3) at ([xshift=2em]s2.east) {$s_3$:上}; \node [anchor=north,inner sep=2pt] (t1) at ([yshift=-2.4em]s1.center) {$t_1$:on}; \node [anchor=north,inner sep=2pt] (t2) at ([yshift=-2.4em]s2.center) {$t_2$:the}; \node [anchor=north,inner sep=2pt] (t3) at ([yshift=-2.4em]s3.center) {$t_3$:table}; \node [anchor=east,inner sep=2pt] (t0) at ([xshift=-2.2em]t1.west) {$t_0$}; } { \draw [-,dashed,thick] (s3.south) -- (t0); \draw [-,dashed,thick] (s3.south) -- (t1); \draw [-,dashed,thick] (s3.south) -- (t2); \draw [-,dashed,thick] (s3.south) -- (t3); } \end{tikzpicture} %---------------------------------------------------------------------