This is a small subset of my current score file at the time of this writing. Working score files tend to grow much larger than this (see Rule Maintenance below), but it is a complete example.
;;; Elfeed score file -*- lisp -*-
((version 8)
("title"
(:text "rust.*who.s hiring" :value 1500 :type r)
(:text "Microsoft Security Response Center" :value 1500 :type s))
("content"
(:text "/u/I_am_dom_" :value 250 :type s :tags (t @china)))
("title-or-content"
(:text "california" :title-value 150 :content-value 100 :type s)
(:text "melpa" :title-value 250 :content-value 150 :type s
:tags (t @dev @emacs))
(:text "workspace" :title-value 150 :content-value 75 :type s
:tags (t linux)))
("tag"
(:tags (t . reddit-question)
:value 750))
("authors"
(:text "Jim Geraghty" :value 500 :type s))
("feed"
(:text "Hacker News" :value 150 :type S :attr t))
(mark -2500)
("adjust-tags"))