relation_extraction

Description of the resources

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1-SSynt-DSynt_PREProc1

• map all verbal tags to dpos = VB
• map all nominal tags to pos = NN
• create "lex" attribute by merging predName and predValue CoNLL columns, so we can access lexicon entries (NN and VB)
  • • fallback if no "predValue"
  • • different handling of NNP
  • • equivalent rule for non NN/VB
• mark nominal and verbal arguments with the "lex" of their governor, in order to facilitate the access to lexicon
• mark verbs involved in passive
• mark genitive constructions for facilitating further processing
• mark possessive constructions for facilitating further processing

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2-SSynt-DSynt_PREProc2

• mark all nodes to be removed (mark all hypernode configurations)
• mark all conjuncts of a coordination with the coordination conjunction found at the bottom

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3-SSynt-DSynt_PTB

• transfer all nodes and hypernodes
• map relations to DSyntRels
  • fix some SSynt ill-formedness during the process
  • special rules for genitives and possessives
• map hypernode configurations to attribute/values when needed
  • aspect, voice, modality, sent_type
• special rules for ID marking
• creates sentence type attribute (declarative, interrogative, etc.)
• mark relative clause constructions (hasRelPro, hasAntecedent)
• mark circumstancials (map SSyntRels to attributes that match semanticon entries)
• mark duplicate DepRels of siblings (needed for post-processing)

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4-DSynt-POSTProc

• remove "it" when another DSyntArg I is dependent of the verb
• resolve argument duplications
• special rule for OPRD constructions without sibling II
• add nodes in gapped coordinations
  • also establish "correct" relations between the introduced node and the original conjuncts (based on GAP- rel)
• mark predicates with external argument information
• mark conjuncts in a coordination with conjunct number (up to 30 conjuncts)
• mark root

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5-DSynt-Sem

• special rules for recovering arguments in control/raise constructions
• special rules for coordinations (conjunction is the head in Sem, and receives external relations)
• special rule that introduces a conjuntion if there is no conjunction in a coordination
• special rule for marking circumstancials/elaborations shared by coordinated elements
• special rules for semantemes and elaborations (new node created)
• special rules for relatives without relative pronouns
• rules for getting VerbNet classes in case they are not provided in the input
  • mark backup VN class if the current class is not found in the VN lexicon
• mark binary/unary predicates

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6-Sem-POSTProc1

• special rules for recovering shared arguments in coordinations
  • in combination with elaboration/semanteme nodes or not
• rules for marking light "be" constructions, when we want to remove the "be"

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7-Sem-POSTProc2

• rules for removing "be" nodes when purely predicative and connecting the remaining nodes
  • also in combination with different kinds of coordinations
• special rules to transfer_attributes from "be" to conjunct(s)
• mark FN frames
  • straightforward, membership, with backup VN class
  • special rule for prepositions, adjectives and determiners: also look in the adverb member list

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8-Sem-VerbNet

• looks for VerbNet classes to assign to nodes
• maps arguments according to dictionary
  • straightforward, default, and with VN backup class
• default mappings for unary and binary predicates
• default mappings for semantemes and elaborations
• mark Frame Elements in order for MATE to only maintain ONE FE if there are several in the lexicon (MATE overwrites attributes, but not relations or nodes)

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9-VerbNet-FrameNet

• special mapping of nodes coming from semantemes (as typed non-core)
• special mapping of nodes coming from simple prepositions as untyped non-core
• special mapping of arguments of unary predicates as Event/Entity/Arg1
• check connectedness (go through the graph starting from the root marked at the SSynt level)