Paragraph- Sent 1: Two women trade houses without ever having met .
Sent 2: They 're both looking for an escape from their problems , but by running away , both come to discover a great deal about themselves .
Sent 3: Ria Lynch is married to Danny Lynch and they have a daughter and a son .
Sent 4: Danny begins spending less and less time at home with his wife and children .
Sent 5: Ria believes another baby is the solution , and is shocked to find out that indeed her husband is going to be a father - but to a child from an affair he has been having .
Sent 6: Her husband 's unfaithfulness is the event that leads Ria into her decision to switch homes with a woman from the US called Marilyn who lost her teenage son to a motorcycle accident on his birthday .
Sent 7: Marilyn is struggling to come to terms with her son 's death and has become estranged from her husband .
Sent 8: She hopes her time in Dublin will cease her grief .
Sent 9: Ria and Marilyn discover deep , dark secrets about the other during the summer .
Sent 10: The two become close friends but do not reveal the secrets .
Sent 11: { { Expand section } }. 
Question: How many children does Danny Linch have? 
Incorrect Answer: A son and a daughter.