It's a relic of SAT verbal analogies section which was removed in 2005. The syntax "A:B::C:D" represents the statement "A is to B as C is to D".
So on the test you'd get questions such as
python:snake :: ___ : ___
a) lua:satellite
b) swift:bird
c) java:coffee
d) pearl:gem
and you might select A because python is an interpreted scripting language and a type of snake in the same way lua is a scripting language and a type of natural satellite but you'd be wrong because the correct answer is B because the topic was actually about comparing animals.
That was an incredible example and I'm frankly more impressed each time I read it at how well constructed it is. You really capture how sensitive the analogy section is to cultural or domain knowledge, and why the College Board eliminated the question type.
I think Godot/Unity: just download and play with it until you have something fun. ____/Unreal: serious library for experts. Unity/Unreal: commercial. Godot/_____: free.
So on the test you'd get questions such as
and you might select A because python is an interpreted scripting language and a type of snake in the same way lua is a scripting language and a type of natural satellite but you'd be wrong because the correct answer is B because the topic was actually about comparing animals.