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_29785324_4 (reservation_for_sc_st VARCHAR, constituency_no VARCHAR)
### Question:
How many reservations for sc/st are there in constituency 191?
### Answer:
SELECT COUNT(reservation_for_sc_st) FROM table_29785324_4 WHERE constituency_no = 191