Jonah has a sister named Rebecca. Rebecca is married to Omar, and together they have two children, Samir and Laila. Jonah is married to Ayesha, and they have a daughter named Fatima. Explain the relationship between Omar and Fatima, as well as between Laila and Ayesha. Also, explain why Samir is not Jonah's son. Provide a very brief response.
Omar is married to Rebecca, who is Jonah's sister. This makes Omar Jonah's brother-in-law. Since Fatima is Jonah's daughter, Omar is Fatima's uncle by marriage.

Laila is the daughter of Rebecca and Omar. Since Rebecca is Jonah's sister and Ayesha is Jonah's wife, Laila is Ayesha's niece by marriage.

Samir is not Jonah's son because he is the child of Rebecca and Omar. Rebecca is Jonah's sister, so her children are Jonah's niece and nephew. Therefore, Samir is Jonah's nephew, not his son.