From several cards which are laid out on a table it is necessary as soon as possible to make couples having at least one general sign the option is as much as possible general signs and to explain the choice.
The fourth superfluous.
The adult selects some ranks in advance on four cards.
Three of them have one general sign any, and couples the verty has no it.
The excess card can settle down in any place a row at the beginning, in the middle, at the end.
The child has to find an excess card and to explain the choice..