Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_25391981_20 (weekly_rank VARCHAR, share VARCHAR, original_airdate VARCHAR)
### Question:
What is the weekly rank of the episode with a 14 share whose original airdate was April 20, 2010? 
### Answer:
SELECT weekly_rank FROM table_25391981_20 WHERE share = "14" AND original_airdate = "April 20, 2010"