question:  What does the E.P. Locator detect?
context: EVERYTHING IT HAD WAS IN THE GARDEN BY R. A. LAFFERTY [Transcriber's Note: This etext was produced from Worlds of If Science Fiction, March 1961. The protozoic recorder chirped like a bird. So again they omitted several tests and went to the cognition scanner. Naturally they did not get results at once, nor did they expect to; it required a fine adjustment. But they were disappointed that they found nothing for several hours as they hovered high over the rotation. There was one more test to run, one very tricky and difficult of analysis, that with the Extraordinary Perception Locator. But this might be so varied or so unfamiliar that often both the machine and the designer of it were puzzled as to how to read the results. The E. P. Locator had been designed by Glaser. But when the Locator had refused to read Positive when turned on the inventor himself, bad blood developed between machine and man. And there was no denying that the Extraordinary Perception Locator (or Eppel) was a contrary machine. On Earth it had read Positive on a number of crack-pots, including Waxey Sax, a jazz tootler who could not even read music. Yet on Suzuki-Mi it had read Positive on a two-inch-long worm, only one of them out of billions. For the countless identical worms no trace of anything at all was shown by the test. He then narrowed to a smaller area (apparently one individual, though this could not be certain) and got very definite action. Finally it signaled the result, the most exasperating result it ever produces: the single orange light. The Little Probe hovered stationary in the light and the moon-town came up under the dawn. "Not a building, not two sticks or stones placed together. Timidity has never been an efficacious tool with us." There was a man and a woman, and they were clothed either in very bright garments or in no garments at all, but only in a very bright light. I don't understand that light that surrounds them.
output:  Level of Perception
options:  Level of Human Activity  Level of Probing  Level of Spinal Fluid  Level of Perception