YOU SAID:
rosemary is a plant and also a person
INTO JAPANESE
ローズマリーは植物であり、人でもあります
BACK INTO ENGLISH
Rosemary is a plant and a person
INTO JAPANESE
ローズマリーは植物であり人です
BACK INTO ENGLISH
Rosemary is a plant and a person
That didn't even make that much sense in English.