What she is inspecting I do not know. Apparently she inspects fields and is called Joy.
Meanwhile, this young lady is here to check for unapproved erections:
Whilst her colleague checks for leakage:
I also stands for...... Imagination. I imagine a barefoot student/graduate wearing a bathrobe and glasses working with laptop, calculator, textbooks and so on. Possibly a Maths (or other STEM) student (possibly a mature student) or graduate working whilst sunbathing....