Here's a complex question that requires someone to reason about the input, can you answer it? In between Iresine and Echinacea which genus contains 20 to 25 species?
Ans: Iresine

Here's a complex question that requires someone to reason about the input, can you answer it? What was the lead single on the album released by the Australian-born member of the Distillers?
Ans: "Meet the Foetus/Oh the Joy"

Here's a complex question that requires someone to reason about the input, can you answer it? Have Bernard McEveety and Manish Gupta both directed films?
Ans: yes

Here's a complex question that requires someone to reason about the input, can you answer it? Who was born first, Nikolai Chebotaryov or  Leonid Khachiyan?
Ans: Nikolai Grigorievich Chebotaryov