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 5)
("title"
(:text "rust.*who.s hiring" :value 1500 :type r
:date 1612278560.2936354 :hits 46)
(:text "Microsoft Security Response Center" :value 1500 :type s))
("content"
(:text "/u/I_am_dom_" :value 250 :type s :date 1592054264.5130005
:tags (t @china)))
("title-or-content"
(:text "california" :title-value 150 :content-value 100 :type s
:date 1612451934.031678 :hits 3077)
(:text "melpa" :title-value 250 :content-value 150 :type s
:date 1612363625.193721
:tags (t @dev @emacs)
:hits 108)
(:text "workspace" :title-value 150 :content-value 75 :type s
:date 1612451475.3151736
:tags (t linux)
:hits 50))
("tag"
(:tags (t . reddit-question)
:value 750 :date 1602258238.98633))
("authors"
(:text "Jim Geraghty" :value 500 :type s
:date 1612451618.429526 :hits 172))
("feed"
(:text "Hacker News" :value 150 :type S :attr t
:date 1612451901.966745 :hits 985))
(mark -2500)
("adjust-tags"))