Question parameters¶

A <parameters> declaration configures how a particular question is handled. It is keyed by predicate, optionally qualified by question_type.

<parameters question_type="wh_question" predicate="person" source="service"
            incremental="true" max_reported_hit_count="10">
  <service_query type="wh_question" predicate="person"/>
  <ask_feature predicate="person_name"/>
  <ask_feature predicate="person_city" kpq="true"/>
</parameters>

Important attributes include:

Attribute	Meaning
`source`	`domain` or `service`; selects where incremental-search results come from.
`incremental`	Enables incremental search.
`verbalize`	Controls whether the question is verbalized.
`allow_goal_accommodation`	Allows goal accommodation for the question.
`always_ground`	Controls grounding behavior.
`max_spoken_alts`	Maximum alternatives spoken; minimum 1.
`max_reported_hit_count`	Maximum hits reported; minimum 1.
`on_zero_hits_action`	Action run when search returns no hits.
`on_too_many_hits_action`	Action run when too many hits remain.
`sort_order`	Currently `alphabetic`.

Children can include service_query, ask_feature, alt, hint, proposition, resolve, perform, related_information, and always_relevant. With source="service", provide a service_query; ask features refine the search. background and graphical_type are not part of the Tala 31.0.1 XML schema.

For child element details, see Ask features, Hints, Service queries, always_relevant, and Alternative choices. The separate plan item invoke_service_query invokes a Service Interface query from a plan.