Task $3$: Possible Study Groups $(4$ marks$)$

Write a function possible$\_$study$\_$groups$($zbinis$).$ The parameter zbinis is a list of Zoomerbinis of the same form as in Task $2.$

The function should return a list representing all the possible ways a valid study group could be chosen from zbinis. Each element is a tuple where:

The first element is a tuple of indices representing a group. This tuple should contain exactly three or four unique indices into the zbinis list in ascending order.

The second element is a score for the group, derived using a "points" system $($described below$).$

For example, if zbinis was of length four, there could be up to five tuples of indices in the result with the first element in each being: $(0,1,2,3),(0,1,2),(0,1,3),(0,2,3)$ and $(1,2,3)$