A:Helen's sister is practical. B:Helen has a sister. Answer: surveillance
A:Jennifer fired Scott. B:Jennifer fired someone. Answer: surveillance
A:Elizabeth and Alice are the only children of George. B:George has exactly 4 children. Answer: smoke
A:Jerry moved the key to terrace from store room. B:The key is now in store room. Answer: smoke
A:Among Joe, Kevin and Rose the noisiest is Rose. B:Rose is noisier than Joe. Answer: surveillance
A:Judith has biology class then computer science class. B:Computer science class is before biology class. Answer: smoke
A:Knife and cookie lie on table. Greg asked for knife. B:Greg also asked for cookie. Answer: smoke
A:Greg was born in 1990 and Ellen was born in 1994. B:Greg was born earlier than Ellen. Answer: surveillance
A:Lawrence is prouder than Helen. B:Lawrence and Helen can be compared in terms of how proud they are. Answer:
surveillance