What chord is this?

[Suncry]

Hi,
I'm new to the world of music theory and trying to learn the basics with online assignments. In this case, I would like your help in identifying the chord in the red rectangle. I know the music is in F major and I think the notes are Bd, D, Bd and G but I can't find the right chord.

Thank you in advance!

Find the right chord.png

[surreal]

It has a tonality of Bflat major with a G note as a passing Bass

[eLawnMust]

It is simply a G minor, next would be to add an F on it to make G minor 7th>>>

[Examigan]

G minor.