Optional
_modeOptional
_scoreSearch ranking (between 0 and 1)
Optional
extensionAdditional content defined by implementations
Optional
idUnique id for inter-element referencing
Optional
modematch | include | outcome - why this is in the result set
Optional
modifierExtensions that cannot be ignored even if unrecognized
Optional
scoreSearch ranking (between 0 and 1)
match | include | outcome - why this is in the result set