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If you take the lessons of your middle school English teacher on faith, you probably think there's a right way and a wrong way to construct a sentence. But linguists have long acknowledged that some grammar falls into a "gray zone," a middle ground in which sentences are neither 100% right nor 100% wrong. Now, a new study shows that the linguists who map out the structure of grammar—syntacticians—rarely use this gray zone in their own studies. It also suggests a wide gap between their black-and white views and those of ordinary people.
"Grammar is not this binary thing," says Jana Häussler, a linguist at the University of Wuppertal in Germany and one of the study's authors. She adds that many of her colleagues still judge grammar using old binary models, when they should be coming up with systems that build in gradience—or the gray zone—as a possibility.
To find out just how many syntacticians use gradience, the researchers looked at 89 grammar papers published in the highly cited journal
Linguistic Inquiry. Most of the authors seemed to give the gray zone its due: They used more than three categories to judge sentence grammar: "completely acceptable," "completely unacceptable," and at least one "intermediate" category. Problem was, they almost never used the intermediate categories for describing sample sentences. Instead, 94% of their sample sentences (2619 in all) made it into the "completely acceptable" or "completely unacceptable" categories, the researchers reported here this month at the Linguistic Society of America meeting.
Researchers also wanted to see how these expert conclusions tallied with the intuitions of ordinary people. In theory, syntacticians base their models on what sounds natural and right to native speakers. The judgments of regular people define the rules; syntacticians are supposed to describe and explain them. So the team took 100 "black-and-white" sentences from the studies and ran them by 65 native English speakers, recruited from the online labor-sourcing platform Amazon Mechanical Turk.
Their answers didn't square with those of the linguists. On a scale of 1 to 7, participants ranked 40% of the black-and-white sentences between 3 and 5, putting them squarely in the "gray zone."The results could affect everything from research into how the human brain processes language to building speech recognition software.
By ignoring the gray zone, say the researchers, syntacticians are failing to describe how language really works.
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