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_34859 ( "New Zealand" real, "Hong Kong" real, "Singapore" real, "London" real, "Brisbane" real, "Cardiff" real, "Durban" real, "Santiago" real, "Mar Del Plata" real, "Beijing" real, "Kuala Lumpur" real, "Points" real )

### Question ###
What is the average Singapore value with a London value less than 0?

### Accurate SQL ###

SELECT AVG("Singapore") FROM table_34859 WHERE "London" < '0'