Assertion: common mullein's leaf | /r/HasProperty | employed in internal and external use
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Source sentences:
text: The leaves, flowers, and even the roots were employed, both in internal and external use, for a wide range of diseases, such as digestive problems (constipation, diarrhea, stomach ache), respiratory (cough, sore throat), circulatory (anaemia), skin (acne, boils), and excretory system ailments.