The RDFNL format was designed to act as an easy representation, which is able to cover complex contextual relations, keeping the simplicity to be parsed and further processed by programs. The RDFNL format can be printed in the following ways:
# The café arrived in Paris in the 17th century , when the beverage was first brought from Turkey , and by the 18th century Parisian cafés were centres of the city 's political and cultural life .
3469c5159933484a8bbdb5b1df36136f 0 The café arrived in Paris in the 17th century
ELEM-BACKGROUND fcbcb5c547f248cc88f8aa3033178d12
fcbcb5c547f248cc88f8aa3033178d12 1 The beverage was first brought
VCON-SPATIAL from Turkey .
394d55aacc064bcc82912689dc0500b9 0 Parisian cafés were centres of the city 's political and cultural life
VCON-TEMPORAL by the 18th century .
In the Default-Format, extractions are grouped by sentences in which they occur and represented by tab-separated values for the identifier
, the context_layer
, as well as subject
, predicate
and object
.
The numerical context_layer
value determines the layer of contextual assignment. Extractions with a context-layer = 0
provide core-information of the input sentence while those with context-layer > 0
provide contextual information about extractions with context-layer - 1
.
Contextual dependencies are indicated by an extra indentation level to their parent extractions, followed by a type_string
.
The type_string
encodes both context_class
:
VCON
: context mediated by verbsNCON
: context mediated by nounsELEM
: relation to another extraction
and the classified rhetorical_relation
(e.g. CAUSE, ENABLEMENT, LOCATION) separated by a -
character.
After the type_string
, there follow tab-separated values for:
object
(iftype_string = VCON
)subject
,predicate
andobject
(iftype_string = NCON
)- the
identifier
of another referenced extraction (iftype_string = ELEM
)
# The café arrived in Paris in the 17th century , when the beverage was first brought from Turkey , and by the 18th century Parisian cafés were centres of the city 's political and cultural life .
3469c5159933484a8bbdb5b1df36136f 0 The café arrived in Paris in the 17th century ELEM-BACKGROUND(fcbcb5c547f248cc88f8aa3033178d12)
fcbcb5c547f248cc88f8aa3033178d12 1 The beverage was first brought VCON-SPATIAL(from Turkey .)
394d55aacc064bcc82912689dc0500b9 0 Parisian cafés were centres of the city 's political and cultural life VCON-TEMPORAL(by the 18th century .)
In the Flat-Format, each extraction is shown in one line. Contextual dependencies are appended at the end of the identifier
, the context_layer
, subject
, predicate
and object
, all separated by tabs. The contexts are represented by the type_string
that is encoded just like in the Default-Format and their content in round brackets.
# The café arrived in Paris in the 17th century , when the beverage was first brought from Turkey , and by the 18th century Parisian cafés were centres of the city 's political and cultural life .
0 The café arrived in Paris in the 17th century
ELEM-BACKGROUND The beverage was first brought
VCON-SPATIAL from Turkey .
1 The beverage was first brought
VCON-SPATIAL from Turkey .
0 Parisian cafés were centres of the city 's political and cultural life
VCON-TEMPORAL by the 18th century .
The Expanded-Format is like the Default-Format but without identifiers. Thereby, references to contextual extractions are resolved and represented as a nested hierarchy by their indentations.