Mother (M) and adult daughter (D)
Let’s buy another dog!
Where is the third tax? They will also be wool, especially in the spring.
D: You don’t understand anything. Look, here we had one dog, then we had a second - the wool was twice as big. Agree with? But if we buy a third one, having already two others, the wool will only be one and a half times more, see what a profit! You can buy a fourth one.