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Property "Has description" (as page type) with input value "A heliostat is a device that strategically places mirrors to reflect the sun to a certain point. This point is typically stationary while the reflectors can move to track the sun to reflect the maximum amount of sun. Heliostats have applications in solar energy, astronomy, and agriculture. There are many different types of heliostats that include: manually operated heliostats, clockwork heliostats, light sensor controlled heliostats and computer controlled heliostats. These devices are widely used for many different purposes." contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

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