Question: Question: who makes blackberry? Would "BlackBerry devices support a large variety of instant messaging features, with the most popular being the proprietary BlackBerry Messenger service." be a reasonable answer?
Answer: No

Question: Question: what is the @ sign called?? Would "The at sign @ is also commonly called the at symbol, ampersat, apetail or commercial at in English—and less commonly a wide range of other terms." be a reasonable answer?
Answer: Yes

Question: Question: where is modem on WAN radio internet?? Would "Acoustic coupler modem" be a reasonable answer?
Answer:
No