(# avg-prices (% 
                  RSS_CHARSET      .charset 
                  RSS_TITLE        .title 
                  RSS_URL          .link 
                  RSS_CHANNEL_DESC .description 
                  price-list       .records 
              )
              (@ const +-
                  ([= RSS_TITLE] const >
                      (& `const ' (' date ')')
                  >
                      (`const)
                  )
              )
              (@ text +-
                  (say text)
              )
- 
    ((# clock) # RSS_DATE_FORMAT -> .date)
)