With reduced format, how do you play the Seven of Singapore?

After gold in Hong Kong, Los Pumas 7 ‘S dispute the last stage of the World Circuit in Singaporewhich has Reduced format. All rugby, in Disney+.
The Argentine team is in group A with two teams: Great Britain and South Africa. Precisely, the great novelty for this contest is that it occurs in the same format as in Cabo Cabo.
In total, there are four areas of three teams each, without the key to the quarterfinals. In this way, the first four of each group will directly access semifinals.
Then, the teams that do not classify the definition phase for gold, will face (according to the results achieved) for staying from the fifth to 12th place.
The groups for the Seven of Singapore:
Male:
Group A: Great Britain, South Africa, Argentina
Group B: Ireland, Kenya, France
Group C: Spain, Uruguay, Australia
Group D: New Zealand, United States, Fiji
Female:
Group A: Brazil, China, New Zealand
Group B: Japan, Spain, Australia
Group C: United States, Great Britain, Canada
Group D: Fiji, Ireland, France