In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: Plan on traveling around the USA? There are a number of outstanding websites that can make your American dream come true. www.101 usaholidays.co.uk This is the latest offering that features 101 holiday ideas to the USA.It's a diverse selection,ranging from touring in the footsteps of Martin Luther King to a golfing break inArizona and a cycling and wine--tasting trip in California's Napa Valley.Narrow down what you're looking for--whether by price,region,theme and who will be traveling--and then just the photos of the relevant holidays remain on view.It's a really clever design. [Link] The National Scenic Byways Program covers 150 memorable roads.Some are natural scenic routes,such as Route l along the California coast.Others focus on history(such as Route 66)or man-made attractions(the Las Vegas Strip).For each,you're provided with a map telling the route's length and how long is allowed. www.oyster.com This is the best website for reviews of hotels in US cities and tourist sites.There are photos of each hotel.Importantly,these are not promotional photos provided by the hotels,but more honest and revealing ones taken by inspectors.From the 243 hotels reviewed in New York,you can narrow down what you are looking for by locations,facilities and styles,or just pick out a selection of the best. [Link] SeaWorld in San Diego can make dreams come true,but the price is not affordable for the majority of people.So turn to long--established,giving big discounts on tickets,hotel and dining at SeaWorld.
Answer: A book review.
Where is the text probably from?

Article: For a long time, the traditional method of identifying liars was to watch their body language, including facial expressions. What if the person appears to be nervous? Is the person unable to look me in the eye? Is he or she look around the room? What about other nervous movements, such as fidgeting or shifting from side to side? Many people--from parents to police officers and airport security personnel--depend on this method. But does a person's body and face reveal the truth? Not according to a new study. Talking, it seems, is the best way to smoke out a liar. That is what researchers in the United Kingdom found out recently. Their investigation took place at one place where lying can get you into big trouble--an airport. The researchers asked volunteers to pretend they were real passengers and then lie to airport security agents. Some of the agents used spoke conversation-based methods to question these make-believe passengers. Others depended instead on the person's body language, like lack of eye contact and showing signs of nervousness. The agents talking with the passengers were 20 times more likely to catch the liars. The study found that these conversation-based techniques can help you recognize when a person is lying to you. Like many methods, this conversation method has a name. It is called Controlled Cognitive Engagement or CCE, for short. The British government partly financed this study. The American Psychological (APA) published the findings. Body language cannot be trusted. Using body language and facial expressions to catch someone in a lie is really hard. And it only works, seemingly, by chance. Thomas Ormerod is the head of the School of Psychology at the University of Sussex in England. On the APA website, he reported that the "suspicious-signs method"--or using body language--"almost completely fails" in finding lies.
Answer: Communicate with researchers by talking.
What should volunteers in the investigation do?

Article: In Sonoma County, California, growers are planting grapevines in a new way. As they plant the vines, they add a package of water called DRiWATER. This method of planting grapevines along with the water supply saves time and work. It gives the plant enough water to keep growing. The workers can go on to other chores. DRiWATER is a package of jelled water. It melts slowly, watering the plant for two or three months. DRiWATER is a 100% natural, non-poisonous product used for the long-term watering of plants. It was invented by a well-known food chemist who recognized the potential of a filler product he was using to thicken peanut butter. He tested and applied his theory that water could be released over time as naturally occurring microbes in the soil fed on the filler and released the water into the soil. The inventor, Harold Jensen, tried for a long time to get the right recipe. He and his family worked nights and weekends testing different formulas. Jensen finally found the right formula and patented it. What are the ingredients in DRiWATER? It is made up of 97.85% water, 2% vegetable gum, and 0.15% aluminum sulfate. When the DRiWATER is planted in the soil, the water is released as bacteria eat the jell. Buchanan Vineyard Services has bought ten thousand packages of DRiWATER. They will plant the jelled water with their new grapevines. What about countries like Egypt that have large deserts? Maybe DRiWATER will help grow trees in the desert. Two million trees have been planted near a town in the Sahara Desert. Two quarts were planted with each tree. The tree must live on the water for months until its roots touch ground water. Harold Jensen hopes to see forests spring up in the deserts. This is the reason that he invented DRiWATER. Seedlings, DRiWATER, and desert may be the perfect fit.
Answer: He made it with the help of his family.
How did Harold Jensen invent DRiWATER?