Are there any deadlocks? If any please explain why or why not.

\begin{tabular}{|c|c|c|c|c|c|c|} \hline & R1(1) & R2(1) & R3(1) & R4(1) & R5(1) & R6(1) \\ \hline P1 & A & R & A & & & \\ \hline P2 & & A & & R & & \\ \hline P3 & R & & R & & R & \\ \hline P4 & & R & R & R & & A \\ \hline P5 & & & & & A & \\ \hline P6 & & & & A & & R \\ \hline \end{tabular}