3.93/1.93	YES
3.93/1.93	
3.93/1.93	Proof:
3.93/1.93	This system is confluent.
3.93/1.93	By \cite{GNG13}, Theorem 9.
3.93/1.93	This system is of type 3 or smaller.
3.93/1.93	This system is deterministic.
3.93/1.93	This system is weakly left-linear.
3.93/1.93	System R transformed to optimized U(R).
3.93/1.93	This system is orthogonal.
3.93/1.93	
6.41/2.57	EOF