The first two persons below, as highlighted in yellow(Kits 4302 and 7471), are related on 12 markers and therefore have a common ancestor.It should be pointed out that this is a father and grandson.
Persons seven and eight, as highlighted in pink (Kits 7271 and 8076), are related on 12 markers and they too have a common ancestor.
None of the other persons represented by the markers below are related using the criteria cited above.