Kent County Cricket Club part in the competition again in 2018. Kent's main ground is the St Lawrence Ground in Canterbury. This ground has been used by the club since 1847 and Kent have played over 500 first-class matches at the ground. It is famous for having a tree, the St Lawrence Lime, on the playing field. The original tree, around which the ground was built, was broken in two by high winds in January 2005 and replaced by a smaller replacement lime tree later in the same year. The ground hosts the annual Canterbury Cricket Week, the oldest cricket festival in the world.
Tree automaton For a top-down automaton, a ground term "t" is accepted if there exists a reduction that starts from "q"("t") and ends with "t", where "q" is an initial state. The tree language "L"("A") accepted, or recognized, by a tree automaton "A" is the set of all ground terms accepted by "A". A set of ground terms is recognizable if there exists a tree automaton that accepts it. A linear (that is, arity-preserving) tree homomorphism preserves recognizability. A non-deterministic finite tree automaton is complete if there is at least one transition rule available for every possible symbol-states combination. A state "q"