How many 8s are there in the following sequence which are preceded by 5 but not immediately followed by 3? \[\begin{array}{*{35}{l}} 5\text{ }8\text{ }3\text{ }7\text{ }5\text{ }8\text{ }6\text{ }3\text{ }8\text{ }5\text{ }4\text{ }5\text{ }8\text{ }4 \\ 7\text{ }6\text{ }5\text{ }5\text{ }8\text{ }3\text{ }5\text{ }8\text{ }7\text{ }5\text{ }8\text{ }2\text{ }8\text{ }5 \\ \end{array}\]