list item   (AMR annotation guidance)

The role :li (for list item) is used to mark numbers or letters in lists such as: It is also used for ordinals such as first, second etc. in multi-sentence lists as in:

Example:  "(a) Background"
     (b / background :li "a")

Example:  First, what is the biggest puzzle between China and the US?
     (p / puzzle-01 :li 1
           :ARG0 (a / amr-unknown)
           :ARG1 (b2 / between
                 :op1 (c / country :wiki "China" :name (n / name :op1 "China"))
                 :op2 (c2 / country :wiki "United_States" :name (n2 / name :op1 "US")))
           :ARG1-of (h / have-degree-91
                 :ARG2 (b / big)
                 :ARG3 (m / most)))

Example:  "Group A: (1) Germany (2) Brazil (3) Italy (4) Argentina"
     (c / consist-01
           :ARG1 (g / group :mod "A")
           :ARG2 (a2 / and
                 :op1 (c2 / country :wiki "Germany" :li 1 :name (n / name :op1 "Germany"))
                 :op2 (c3 / country :wiki "Brazil" :li 2 :name (n2 / name :op1 "Brazil"))
                 :op3 (c4 / country :wiki "Italy" :li 3 :name (n3 / name :op1 "Italy"))
                 :op4 (c5 / country :wiki "Argentina" :li 4 :name (n4 / name :op1 "Argentina"))))

When not to use :li

Example:  "Chapter 1"
     (c / chapter :mod 1)

Similarly: row 7, bus 20, group A, appendix B

Example:  her second child
     (p / person
           :ARG0-of (h / have-rel-role-91
                 :ARG1 (s / she)
                 :ARG2 (c / child))
           :ord (o / ordinal-entity :value 2))

Example:  At first, he refused.
     (r / refuse-01
           :ARG0 (h / he)
           :time (a / at-first))

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