There are many kinds of soybeans, including soybeans, black beans, green beans, feed beans, etc. Therefore, soybeans are just one kind of soybeans.
Although soybean is only one kind of soybean, its nutrition is the same as soybean, and its protein content is twice that of pork and 2.5 times that of eggs.
The amino acid composition of soybean protein is very similar to that of animal protein, and the amino acid is close to a ratio needed by human body, so it is easily digested and absorbed.