List down the number of inhabitants of customers with a widowed marital status and false response .
number of inhabitants refers to INHABITANTS_K; RESPONSE = 'false';
SELECT COUNT(T1.ID) FROM Customers AS T1 INNER JOIN Mailings1_2 AS T2 ON T1.ID = T2.REFID INNER JOIN Demog AS T3 ON T1.GEOID = T3.GEOID WHERE T1.MARITAL_STATUS = 'Widowed' AND T2.RESPONSE = 'true'
database name:db_id software_company
Demog table Demog Cols: GEOGRAPHIC ID dtype integer, INHABITANTS (THOUSANDS) dtype real, INCOME (THOUSANDS) dtype real, A_VAR1 dtype real, A_VAR2 dtype real, A_VAR3 dtype real, A_VAR4 dtype real, A_VAR5 dtype real, A_VAR6 dtype real, A_VAR7 dtype real, A_VAR8 dtype real, A_VAR9 dtype real, A_VAR10 dtype real, A_VAR11 dtype real, A_VAR12 dtype real, A_VAR13 dtype real, A_VAR14 dtype real, A_VAR15 dtype real, A_VAR16 dtype real, A_VAR17 dtype real, A_VAR18 dtype real, 
mailings3 table mailings3 Cols: REFERENCE ID dtype integer, REFERENCE DATE dtype datetime, RESPONSE dtype text, 
Customers table Customers Cols: ID dtype integer, SEX dtype text, MARITAL STATUS dtype text, GEOGRAPHIC ID dtype integer, EDUCATION NUMBER dtype integer, OCCUPATION dtype text, age dtype integer, 
Mailings1_2 table Mailings1_2 Cols: REFERENCE ID dtype integer, REFERENCE DATE dtype datetime, RESPONSE dtype text, 
Sales table Sales Cols: EVENT ID dtype integer, REFERENCE ID dtype integer, EVENT DATE dtype datetime, AMOUNT dtype real, 
