Select from options: How similar are the following two sentences?

A man is walking outside.
A man is dancing.

Give the answer on a scale from 0 - 5, where 0 is "not similar at all" and 5 is "means the same thing".

Available options:
[i] 0;
[ii] 1;
[iii] 2;
[iv] 3;
[v] 4;
[vi] 5;
[ii]