A:Kate is the only child of Sally. B:Sally has exactly 5 child. Answer: operator
A:Jack and Alison are friends. He is an aviator and she is a chef. B:Jack is a chef. Answer: operator
A:Dave but not Tim is a physician. B:Dave is a physician. Answer: postcard
A:Sue is sorrier than William. Sue is sorrier than Angela. B:Among William, Sue and Angela the sorriest is Sue. Answer: postcard
A:Christine asked Samuel for 30 dollars. Samuel had 10. B:Samuel did not have 30 dollars. Answer: postcard
A:Ellen, Suzanne and Rose are from India, Egypt and Vietnam respectively. B:Rose is not from Vietnam. Answer: operator
A:Jason was born in 2012 and Ann was born in 1991. B:Jason was born after Ann. Answer: postcard
A:Scissor is black in colour. B:Scissor is yellow in colour. Answer: operator
A:Arthur was born in 2004 and Sue was born in 2011. B:Sue was born before Arthur. Answer:
operator