/usr/share/link-grammar/en/words/units.3 is in link-grammar-dictionaries-en 4.7.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | °C.u °F.u degrees_Fahrenheit degrees_Centigrade degrees_C
mph.i MPH.i mpg.i MPG.i cc.i ml.i
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