Three people , two males and a female , work in shallow dug out pits during an archaeological excavation .
Two women and one man are working .
Three people, two males and a female, work in shallow dug out pits during an archaeological excavation.
Two women and one man are working.
They are either two males and one female, or two women and one man.
They are either two males and one female , or two women and one man .