вкусно?

You probably like sweet?
And monkeys, and first people wanted sweet things too. Berries, fruits, honey.
Because yummy stuff is always eatable.
Sour stuff tells you can’t eat it.
Bitter taste means it did not mature yet.
People think that there are four kinds of taste: sweet, sour, frightening and salty.
But there is a fifth kind. It was discovered a hundred years ago.
It is called in japanese “umami”.
That taste means that the person is not going hungry.
The taste “umami” is in meat, mushrooms and walnuts.
Soybean sauce gives the taste to every food.