How do I obtain the ramp response of the transfer function given below:

How do I obtain the ramp response of the transfer function given below:

(s) (s + 5) (s + 3)

T(S) = ------------------------------------

(s + 1) (s + 2) (s + 11) (s + 7)

t = 0 : 0.01 : 10;

u = t;

num = input('enter the numerator of the transfer function')

den = input('enter the denominator of the transfer function')

lsim(num,den,u,t)