We know that the nurse checks the woman because it's stated that a nurse is checking the woman's blood pressure.
This justifies what answer for what question? Q & A: 
Test for natural language inference.
Premise: "A nurse is checking the woman's blood pressure using a blood pressure pump and a pink stethoscope."
Hypothesis: "A nurse checks a woman."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
yes