1.19/0.73	YES
1.19/0.73	
1.19/0.73	Proof:
1.19/0.73	This system is confluent.
1.19/0.73	By \cite{GNG13}, Theorem 9.
1.19/0.73	This system is of type 3 or smaller.
1.19/0.73	This system is deterministic.
1.19/0.73	This system is weakly left-linear.
1.19/0.73	System R transformed to optimized U(R).
1.19/0.73	This system is orthogonal.
1.19/0.73	
1.19/0.75	EOF