Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[Q]: Context: In 2009, 78.5% of Dallas (city) commuters drive to work alone. The 2009 modal share for Dallas (city) commuters are 10.7% for carpooling, 3.9% for transit, 1.9% for walking, and .1% for cycling. In 2015, the American Community Survey estimated modal shares for Dallas (city) commuters of 75.4% for driving alone, 12.8% for carpooling, 3.5% for riding transit, 1.9% for walking, and .2% for cycling. The city of Dallas has a higher than average percentage of households without a car. In 2015, 10.2 percent of Dallas households lacked a car, and decreased to 9.1 percent in 2016. The national average was 8.7 percent in 2016. Dallas averaged 1.59 cars per household in 2016, compared to a national average of 1.8. 
 Question: Which group in percent of commuters in Dallas in 2009 is larger: carpooling or walking?
[A]: carpooling


[Q]: Context: The following are selected contributors' notes for an essay collection. KATY BUTLER, a 2004 finalist for a National Magazine Award, has written for The New Yorker, the New York Times, Mother Jones, Salon, Tricycle, and other magazines. She was born in South Africa and raised in England, and came to the United States with her family at the age of eight. "Everything Is Holy," her essay about nature worship, Buddhism , and ecology, was selected for Best Buddhist Writing 2006. In 2009 she won a literary award from the Elizabeth George Foundation. "What Broke My Father's Heart" was named a "notable narrative" by the Nieman Foundation for Journalism at Harvard, won a first-place award from the Association of Health Care Journalists, and was named one of the 100 Best Magazine Articles of All Time. Butler has taught narrative nonfiction at Nieman Foundation conferences and memoir writing at Esalen Institute. Her current book project is Knocking on Heaven's Door: A Journey Through Old Age and New Medicine to be published in 2013. VICTOR LAVALLE is the author of a collection of stories, Slapboxing with Jesus, and two novels, The Ecstatic and Big Machine, for which he won the Shirley Jackson Award, the American Book Award, and the Ernest J. Gaines Award for Literary Excellence. He is a 2010 Guggenheim Award winner and an assistant professor at Columbia University's School of the Arts. About "Long Distance" he says: "This essay actually came about when I was asked to write about my life after having lost a great deal of weight. And yet, when I sat down to work, all I could do was return to that time when I was much heavier and deeply unhappy. Why? I sure didn't miss those days. And yet, I felt I couldn't write about my present without touching on that past. But, of course, I never reach the true present in the essay. Maybe I still don't know how to talk about a life with greater happiness. " BRIDGET POTTER was born in Brompton-on-Swale, Yorkshire, and came to the United States as a teenager in 1958. She spent the first forty years of her career in television, beginning as a secretary, then as a producer and an executive, including fifteen years as senior vice president of original programming at HBO. In 2007 she earned a BA in cultural anthropology from Columbia University. This year she will complete an MFA in nonfiction, also from Columbia, where she has been an instructor in the University Writing Program. She is currently working on her first book, a memoir / social history of the 1960s, from which her essay "Lucky Girl" is adapted. PATRICIA SMITH is the author of five books of poetry, including Blood Dazzler, chronicling the tragedy of Hurricane Katrina, which was a finalist for the 2008 National Book Award, and Teahouse of the Almighty, a National Poetry Series selection. Her work has appeared in Poetry, The Paris Review, TriQuarterly, and The Best American Poetry 2011. She is a Pushcart Prize winner and a four-time individual champion of the National Poetry Slam, the most successful poet in the competition's history. RESHMA MEMON YAQUB wouldn't even be fit to write a grocery list were it not for her guardian editors. Her stories owe many glorious plot twists to Zain, eleven, and Zach, seven. Ditto their dad (Amer) and grandparents (Ali, Razia, Muhammad, Nasreen). Costars: Sophie, Sana, Yousef, and Maryam. Miss Yaqub lives in Bethesda, Maryland. Her next project is an investigation into the whereabouts of two missing people: Mr. Right and Ms. Memoir Literary Agent. 
 Question: Who is the most successful poet in the competition's history?
[A]: patricia smith.


[Q]: Context: The similarities of the larval and nymph stages of the tick and louse (Pthirus pubis) may lead to misdiagnosis in rare cases of infestation of the eyelashes. The most frequent manifestations of tick in the eye are conjunctivitis, uveitis, keratitis, and vasculitis. Tick inoculation of the skin can locally lead to formation of granuloma and abscess. More concerning is the potential systemic sequelae that can result from transmission of zoonoses such as Lyme disease. P. pubis can cause pruritic eyelid margins or unusual blepharoconjunctivitis. We present a case of phthiriasis palpebrarum in a 4-year-old boy. 
 Question: What is the cause of Phthiriasis Palpebrarum?
[A]:
pthirus pubis