\begin{tikzpicture}
\onslide<2->{\node at (0,4){
	\begin{tikzpicture}[scale=0.7, transform shape]

		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=blue!50, draw=black] (A) at (0,1){};
		\node at (0.2,1.8) {$v$};
		\node at (0.2,0.2) {$u$};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (B) at (0,-0.5){};
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=green!50, draw=black] (C) at (0,2.8){};
				\draw[->](A)--(C);
				\draw[->](Aemb)--(A);
				\draw[->](B)--(A);
	

	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,-1){\tiny $x_1$};

	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,3.3){\tiny $y_1$};
	
	\end{tikzpicture}};
}
\onslide<3->{
\node at (4,4){
\begin{tikzpicture}[scale=0.7, transform shape]
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=blue!50, draw=black] (A) at (0,1){};
		\node at (0.2,1.8) {$v$};
		\node at (0.2,0.2) {$u$};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (Aemb) at (0,-0.5){};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (B) at (-1,-0.5){};
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=green!50, draw=black] (C) at (0,2.8){};
				\draw[->](A)--(C);
				\draw[->](Aemb)--(A);
				\draw[->](B)--(A);

	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,-1){\tiny $x_2$};
	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,3.3){\tiny $y_2$};
	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-1,-1){\tiny $x_1$};
\end{tikzpicture}	
};}

\onslide<4->{
\node at (0,0){
	
\begin{tikzpicture}[scale=0.7, transform shape]
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=blue!50, draw=black] (A) at (0,1){};
		\node at (0.2,1.8) {$v$};
		\node at (0.2,0.2) {$u$};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (Aemb) at (0,-0.5){};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (B) at (-1,-0.5){};
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=green!50, draw=black] (C) at (0,2.8){};
				\draw[->](A)--(C);
				\draw[->](Aemb)--(A);
				\draw[->](B)--(A);

		\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-1,-1){\tiny $x_2$};
		\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-2,-1){\tiny $x_1$};	
	\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,-1){\tiny $x_3$};
	
			\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,3.3){\tiny $y_3$};
	
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (D) at (-2,-0.5){};

				\draw[->](D)--(A);		
	
\end{tikzpicture}	
};}

\onslide<5->{
\node at (4,0){
	
\begin{tikzpicture}[scale=0.7, transform shape]
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=blue!50, draw=black] (A) at (0,1){};
		\node at (0.2,1.8) {$v$};
		\node at (0.2,0.2) {$u$};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (Aemb) at (0,-0.5){};
		\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (B) at (-1,-0.5){};
		\node [rectangle, minimum height=8mm, minimum width=3mm, fill=green!50, draw=black] (C) at (0,2.8){};
				\draw[->](A)--(C);
				\draw[->](Aemb)--(A);
				\draw[->](B)--(A);

		\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-1,-1){\tiny $x_3$};
			\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,-1){\tiny $x_4$};

			\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (0,3.3){\tiny $y_4$};
			\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (D) at (-2,-0.5){};
			\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-2,-1){\tiny $x_2$};		
			
			\node [rectangle, minimum height=6mm, minimum width=3mm, fill=orange!50, draw=black] (E) at (-3,-0.5){};			
			\node [rectangle, minimum height=3mm, minimum width=3mm,text width=1cm, align=center] (w1) at (-3,-1){\tiny $x_1$};		
						
			\draw[->](D)--(A);		
			\draw[->](E)--(A);
\end{tikzpicture}	
}; }			      				
\end{tikzpicture}
	