There are four individuals standing together in a line at the waters edge wearing black diving gear with red and black flippers .
It is highly likely that a group of 2 men and 2 woman are standing together at the waters edge .
It is improbable that a group of 2 men and 2 woman are standing together at the waters edge .
It is highly likely that a group of 2 men and 2 woman are standing together at the waters edge .
A group of 2 men and 2 woman are standing together at the waters edge .