When I put "Man and child" which I know isn't a perfect answer the correct answer came up to be "men and a child" which is definitely incorrect since the noun "man" doesn't have the -"pu'" suffix. Might want to check that.
loD doesn't include ANY kind of article. If I were learning the word hombre in Spanish, I wouldn't learn it as the man or a man. It's just man. Well, in Klingon, loD is just man or men. When you translate it into English, you have to ADD an article most of the time, because English requires them. But the Klingon word loD doesn't carry that meaning.