Is Jake going to buy a map?
No, he isn't. Is Jilly going to buy a map?
Yes, she is.
Is Jake going to go camping?
Yes, he is. Is Jilly going to go camping?
Yes, she is.
Is Jake going to buy souvenirs?
No, he isn't. Is Jilly going to buy souvenirs?
No, she isn't.
Is Jake going to go diving?
Yes, he is. Is Jilly going to go diving?
No, she isn't.
Is Jake going to go surfing?
No, he isn't. Is Jilly going to go surfing?
Yes, she is.