update chapter 7

Chapter7/Figures/figure-example-of-vocabulary-translation-probability.tex

@@ -40,7 +40,7 @@
 \node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (la5) at (a30) {};
 
 \node[anchor=west] (f1) at ([xshift=3em,yshift=0.8em]a43.east) {\small{$\funp{P}_{\textrm{lex}}(\bar{t}|\bar{s})=\sigma (t_1|s_1)\times$}};
-\node[anchor=north] (f2) at ([xshift=5.2em]f1.south) {\small{$\frac{1}{2}(\sigma (t_2|s_2)+\sigma (t_4|s_2))\times$}};
+\node[anchor=north] (f2) at ([xshift=5.2em]f1.south) {\small{$\frac{1}{2}(\sigma (t_2|s_2)+\sigma (t_3|s_2))\times$}};
 \node[anchor=north west] (f3) at (f2.south west) {\small{$\sigma (N|s_3)\times$}};
 \node[anchor=north west] (f4) at (f3.south west) {\small{$\sigma (t_4|s_4)\times$}};