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"The Earth orbits the Sun."

"We owe them our thanks for bringing the project to a successful close."

"The completion of the project meant we could finally take a break. "

"The children physically exhausted themselves playing tag in the park. "

"Ancient astronomers observed that seven planets – the Moon, Mercury, Venus, the Sun, Mars, Jupiter, and Saturn – moved differently than the fixed stars. "

"My sister earned a degree in psychology from the university. "

"Nature never lies (i.e. tells untruths)."

"The family's voyage across the ocean was a memorable experience. "

"My friends and I have different opinions about which restaurant to go to for dinner. "

"After we found the freshwater spring we were more confident that the place was habitable."

"We need to find an acceptable present for Jeff."

"The proximity of the heat source allowed it to be detected by the sensor."