# Describe this Turing machines

I need to describe a Turing machine that it can be multitape.

$$M = (Q,Σ,Γ,δ,q_0,q_a,q_r)$$.

Who decide that language.

$$L=\{\#uqv\#u’q’v’\#:u,v,u’v’∈(Γ\setminus\{\sqcup\}^*,q,q’∈ Q$$ and$$(u,q,v) \Rightarrow (u’,q’,v’)\}$$ according to M.

on alphabet.

$$\Sigma’=Q\cup(Γ\setminus\{\sqcup\})\cup\{\#\}$$

But I not sure to understand the language and the alphabet $$\Sigma’$$, do you have exemple that could help me to understand. Thanks