Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE CAR_MAKERS (Id VARCHAR, FullName VARCHAR)
TABLE: CREATE TABLE MODEL_LIST (model VARCHAR, Model VARCHAR, Maker VARCHAR)
TABLE: CREATE TABLE CARS_DATA (Id VARCHAR, weight VARCHAR)
TABLE: CREATE TABLE CAR_NAMES (Model VARCHAR, MakeId VARCHAR)

### Question ###
Which models are lighter than 3500 but not built by the 'Ford Motor Company'?

### Accurate SQL ###

SELECT DISTINCT T1.model FROM MODEL_LIST AS T1 JOIN CAR_NAMES AS T2 ON T1.Model = T2.Model JOIN CARS_DATA AS T3 ON T2.MakeId = T3.Id JOIN CAR_MAKERS AS T4 ON T1.Maker = T4.Id WHERE T3.weight < 3500 AND T4.FullName <> 'Ford Motor Company'