Question 1
If:
A = brother of, B = sister of, C = father of, D = mother of, E = son of, F = daughter of, G = husband of, H = wife of
Then what does 'Ali C Qasim and Qasim E Paul' mean in terms of Ali's relation to Paul?
C = 'father of', E = 'son of'. Combining: Ali is father of Qasim, and Qasim is son of Paul. Therefore, Ali is grandfather of Paul.