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nsubj: nominal subject

A nominal subject (nsubj) is a nominal which is the syntactic subject and the proto-agent of a clause. That is, it is in the position that passes typical grammatical test for subjecthood, and this argument is the more agentive, the do-er, or the proto-agent of the clause. (See csubj for when the subject is clausal. See nsubjpass and csubjpass for when the subject is not the proto-agent argument due to valence changing operations.) This nominal may be headed by a noun, or it may be a pronoun or relative pronoun, or in ellipsis contexts, other things such as an adjective.

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Euler fez mais duas jogadas .
nsubj(fez, Euler)
{
    "text": "Euler fez mais duas jogadas . ",
    "entities": [
        [ "embedded-1-T1", "token", [ [ 0, 5 ] ] ],
        [ "embedded-1-T2", "token", [ [ 6, 9 ] ] ],
        [ "embedded-1-T3", "token", [ [ 10, 14 ] ] ],
        [ "embedded-1-T4", "token", [ [ 15, 19 ] ] ],
        [ "embedded-1-T5", "token", [ [ 20, 27 ] ] ],
        [ "embedded-1-T6", "token", [ [ 28, 29 ] ] ]
    ],
    "relations": [
        [ "embedded-1-R1", "nsubj", [ [ "arg1", "embedded-1-T2" ], [ "arg2", "embedded-1-T1" ] ] ]
    ],
    "attributes": [],
    "error": false,
    "sentlabels": [ "1" ]
}

«!- The nsubj role is only applied to semantic arguments of a predicate. When there is an empty argument in a grammatical subject position (sometimes called a pleonastic or expletive), it is labeled as expl. If there is then a displaced subject in the clause, as in the English existential there construction, it will be labeled as nsubj.) –>

The governor of the nsubj relation might not always be a verb: when the verb is a copular verb, the root of the clause is the complement of the copular verb, which can be an adjective or noun, including a noun marked by a preposition, as in the examples below.

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o tom já é outro .
nsubj(outro, tom)
{
    "text": "o tom já é outro . ",
    "entities": [
        [ "embedded-2-T1", "token", [ [ 0, 1 ] ] ],
        [ "embedded-2-T2", "token", [ [ 2, 5 ] ] ],
        [ "embedded-2-T3", "token", [ [ 6, 8 ] ] ],
        [ "embedded-2-T4", "token", [ [ 9, 10 ] ] ],
        [ "embedded-2-T5", "token", [ [ 11, 16 ] ] ],
        [ "embedded-2-T6", "token", [ [ 17, 18 ] ] ]
    ],
    "relations": [
        [ "embedded-2-R1", "nsubj", [ [ "arg1", "embedded-2-T5" ], [ "arg2", "embedded-2-T2" ] ] ]
    ],
    "attributes": [],
    "error": false,
    "sentlabels": [ "2" ]
}

Note that when the subject appears after the verb, it is still tagged as nsubj.

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É um povo apaixonado , o povo basco .
nsubj(povo-3, povo-7)
{
    "text": "É um povo apaixonado , o povo basco . ",
    "entities": [
        [ "embedded-3-T1", "token", [ [ 0, 1 ] ] ],
        [ "embedded-3-T2", "token", [ [ 2, 4 ] ] ],
        [ "embedded-3-T3", "token", [ [ 5, 9 ] ] ],
        [ "embedded-3-T4", "token", [ [ 10, 20 ] ] ],
        [ "embedded-3-T5", "token", [ [ 21, 22 ] ] ],
        [ "embedded-3-T6", "token", [ [ 23, 24 ] ] ],
        [ "embedded-3-T7", "token", [ [ 25, 29 ] ] ],
        [ "embedded-3-T8", "token", [ [ 30, 35 ] ] ],
        [ "embedded-3-T9", "token", [ [ 36, 37 ] ] ]
    ],
    "relations": [
        [ "embedded-3-R1", "nsubj", [ [ "arg1", "embedded-3-T3" ], [ "arg2", "embedded-3-T7" ] ] ]
    ],
    "attributes": [],
    "error": false,
    "sentlabels": [ "3" ]
}

Note that complex subjects are treated as conjunctions and only the first element of the conjunction holds the nsubj relation.

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O Grupo Champalimaud, a Petrogal, a TAP, a Marconi, são algumas das que mais investiram.
nsubj(algumas, Grupo)
conj(Grupo, Petrogal)
conj(Grupo, TAP)
conj(Grupo, Marconi)
{
    "text": "O Grupo Champalimaud, a Petrogal, a TAP, a Marconi, são algumas das que mais investiram. ",
    "entities": [
        [ "embedded-4-T1", "token", [ [ 0, 1 ] ] ],
        [ "embedded-4-T2", "token", [ [ 2, 7 ] ] ],
        [ "embedded-4-T3", "token", [ [ 8, 21 ] ] ],
        [ "embedded-4-T4", "token", [ [ 22, 23 ] ] ],
        [ "embedded-4-T5", "token", [ [ 24, 33 ] ] ],
        [ "embedded-4-T6", "token", [ [ 34, 35 ] ] ],
        [ "embedded-4-T7", "token", [ [ 36, 40 ] ] ],
        [ "embedded-4-T8", "token", [ [ 41, 42 ] ] ],
        [ "embedded-4-T9", "token", [ [ 43, 51 ] ] ],
        [ "embedded-4-T10", "token", [ [ 52, 55 ] ] ],
        [ "embedded-4-T11", "token", [ [ 56, 63 ] ] ],
        [ "embedded-4-T12", "token", [ [ 64, 67 ] ] ],
        [ "embedded-4-T13", "token", [ [ 68, 71 ] ] ],
        [ "embedded-4-T14", "token", [ [ 72, 76 ] ] ],
        [ "embedded-4-T15", "token", [ [ 77, 88 ] ] ]
    ],
    "relations": [
        [ "embedded-4-R1", "nsubj", [ [ "arg1", "embedded-4-T11" ], [ "arg2", "embedded-4-T2" ] ] ]
    ],
    "attributes": [],
    "error": true,
    "sentlabels": [ "4" ]
}

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nsubj in other languages: [bej] [bg] [bm] [cop] [cs] [de] [el] [en] [es] [ess] [et] [eu] [fi] [fr] [fro] [ga] [gd] [gsw] [hy] [it] [ja] [ka] [kk] [kmr] [ky] [mr] [myv] [no] [pa] [pcm] [pt] [qpm] [ro] [ru] [sl] [ssp] [sv] [swl] [tr] [u] [uz] [vi] [xcl] [yue] [zh]

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