CREATE TABLE document_functional_areas (document_code CLOB, functional_area_code CLOB)
CREATE TABLE roles (role_code CLOB, role_description CLOB)
CREATE TABLE functional_areas (functional_area_code CLOB, parent_functional_area_code CLOB, functional_area_description CLOB)
CREATE TABLE document_sections (section_id NUMBER, document_code CLOB, section_sequence NUMBER, section_code CLOB, section_title CLOB)
CREATE TABLE document_structures (document_structure_code CLOB, parent_document_structure_code CLOB, document_structure_description CLOB)
CREATE TABLE users (user_id NUMBER, role_code CLOB, user_name CLOB, user_login CLOB, password CLOB)
CREATE TABLE images (image_id NUMBER, image_alt_text CLOB, image_name CLOB, image_url CLOB)
CREATE TABLE document_sections_images (section_id NUMBER, image_id NUMBER)
CREATE TABLE documents (document_code CLOB, document_structure_code CLOB, document_type_code CLOB, access_count NUMBER, document_name CLOB)

What are the average access counts of documents that have the functional area description 'Acknowledgement'?
SELECT AVG(t1.access_count) FROM documents AS t1 JOIN document_functional_areas AS t2 ON t1.document_code = t2.document_code JOIN functional_areas AS t3 ON t2.functional_area_code = t3.functional_area_code WHERE t3.functional_area_description = "Acknowledgement"
SELECT AVG("t1"."access_count") FROM "documents" "t1" JOIN "document_functional_areas" "t2" ON "t1"."document_code" = "t2"."document_code" JOIN "functional_areas" "t3" ON "Acknowledgement" = "t3"."functional_area_description" AND "t2"."functional_area_code" = "t3"."functional_area_code"