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 table_67555 ( "Builder" text, "Construct- tion no." real, "Date ordered" text, "Wheel arrange- ment" text, "s Cylinder" text, "Engine weight" text, "TC&StL no. (1883\u201384)" real )

### Question ###
How many constructions has a Wheel arrange- ment of 4-4-0?

### Accurate SQL ###

SELECT SUM("Construct- tion no.") FROM table_67555 WHERE "Wheel arrange- ment" = '4-4-0'