Enum ThematicRole 

pub enum ThematicRole {
    Agent,
    Patient,
    Theme,
    Recipient,
    Goal,
    Source,
    Instrument,
    Location,
    Time,
    Manner,
}

Neo-Davidsonian thematic roles for event semantics.

Following Parsons’ neo-Davidsonian analysis, events are reified and participants are related to events via thematic role predicates: ∃e(Run(e) ∧ Agent(e, john) ∧ Location(e, park)).

Variants

Agent

Animate initiator of action (e.g., “John” in “John ran”).

Patient

Entity affected by action (e.g., “the window” in “broke the window”).

Theme

Entity involved without change (e.g., “the ball” in “saw the ball”).

Recipient

Animate entity receiving something (e.g., “Mary” in “gave Mary a book”).

Goal

Destination or endpoint (e.g., “Paris” in “went to Paris”).

Source

Origin or starting point (e.g., “London” in “came from London”).

Instrument

Tool or means (e.g., “a knife” in “cut with a knife”).

Location

Spatial setting (e.g., “the park” in “ran in the park”).

Time

Temporal setting (e.g., “yesterday” in “arrived yesterday”).

Manner

How action was performed (e.g., “quickly” in “ran quickly”).

Trait Implementations

impl Clone for ThematicRole

fn clone(&self) -> ThematicRole

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ThematicRole

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ThematicRole

fn eq(&self, other: &ThematicRole) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ThematicRole

impl Eq for ThematicRole

impl StructuralPartialEq for ThematicRole