as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
question about data from ftse 100
user
open, high, low, close, volume. the hint is that volume on new years day is 0.  dc's comment is actually a better answer than mine - when given any data set, you should really know the meaning of each cell/number.
assistant