We are given the following attribute grammar.

$SE,\{S.x=E.v**2,E.t=8\}$

$EEa\{E_0*v=2+E_1*v,E_1*t=E_0*t+1\}$

$EEb,\{E_0*v=4+E_1*v,E_1*t=E_0*t+1\}$

$EEC,\{E_0*v=5+E_1*v,E_1*t=E_0*t+1\}$

$E,\{E.v=E.t**2\}$

What is the value of S$.$x in the annotated parse tree for the input $"$b ca$"?$

The correct answer is: $66$