R $->$ XRX $|$ S

S $->$ aT b $|$ bT a

T $->$ XT X $|$ X $|\backslash$epsi

X $->$ a $|$ b

a$.$ What are the variables of G$?$

b$.$ What are the terminals of G$?$

c$.$ Which is the start variable of G$?$

d$.$ Give three strings in L$($G$).$

e$.$ Give three strings not in L$($G$).$

f$.$ True or False: T $$ aba.

g$.$ True or False: T

$$ aba.

h$.$ True or False: T $$ T $.$

i$.$ True or False: T

$$ T $.$

j$.$ True or False: XXX $$ aba.

k$.$ True or False: X

$$ aba.

l$.$ True or False: T

$$ XX$.$

m$.$ True or False: T

$$ XXX$.$

n$.$ True or False: S

$\backslash$epsi $.$

o$.$ Give a description in