prep roles   (AMR annotation guidance)

Examples for prep roles:

Example:  "Pierre Vinken , 61 years old , will join the board as a nonexecutive director Nov. 29 ."
     (j / join-01
           :ARG0 (p / person :wiki -
                 :name (p2 / name :op1 "Pierre" :op2 "Vinken")
                 :age (t / temporal-quantity :quant 61
                       :unit (y / year)))
           :ARG1 (b / board
                 :ARG1-of (h / have-org-role-91
                       :ARG0 p
                       :ARG2 (d2 / director
                             :mod (e / executive :polarity -))))
           :time (d / date-entity :month 11 :day 29))

Example:  "A brief was filed on behalf of the government ."
     (f / file-01
           :ARG1 (b / brief)
           :prep-on-behalf-of (g / government-organization
                 :ARG0-of (g2 / govern-01)))

Example:  "By law , the council includes at least 5 members ."
     (i / include-01
           :ARG1 (m / member
                 :quant (a / at-least :op1 5))
           :ARG2 (c / council)
           :ARG1-of (r / require-01
                 :ARG0 (l / law)))

Note: Please use prepositional roles such as these only if no other semantic roles fits.

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