Workers doesn't imply that they must be both men and women. They can be one or the other.
The question and answer are below.
If "Workers wearing heavy jackets working in a railroad station." does that mean that "Both men and women are working on the station."?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell

The orchestra teacher could be teaching while the children are not playing.
The question and answer are below.
If "An orchestra teacher is teaching his kids." does that mean that "The kids are playing music."?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell

One is not running if the person bends down and pets a dog.
The question and answer are below.
Given the sentence "A woman bends down and pets a young girl's dog." is it true that "The females are not running."?
yes