qanda
There are three forms of dialog. Simplex Dialogs - One way transfers, similar to an old computer/printer. Data could be sent to the printer but the printer could not communicate back. Half-Duplex...
It could be A (25%) or B (25%) or AB (25%) or O (25%) blood group
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Sand,silt,clay,organic matter and humus.
The father must have a blood type of B or AB.