question:
In more recent applications, hydrogen is used pure or mixed with nitrogen (sometimes called forming gas) as a tracer gas for minute leak detection.
How is hydrogen used as a food additive?

answer: no

question:
Boathouse Row is a symbol of Philadelphia's rich rowing history, and each Big Five member has its own boathouse.
What is the symbol of rowing in the city?

answer: yes

question:
While the term is sometimes used interchangeably with ethnographic film, visual anthropology also encompasses the anthropological study of visual representation, including areas such as performance, museums, art, and the production and reception of mass media.
What term is visual anthropology sometimes used interchangeably with?

answer: yes

question:
After a brief period of supremacy by King Harshavardhana, the region was once again divided into several local powers headed by chieftains, including some Rajput principalities.
Who marched through the lower states and captured and forts and fought many battles?

answer:
no