How many lines have the segment description of red line mos-2 west?
CREATE TABLE table_1817879_2 (line_s_ VARCHAR, segment_description VARCHAR)
SELECT line_s_ FROM table_1817879_2 WHERE segment_description = "Red Line MOS-2 West"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1817879_2 (line_s_ VARCHAR, segment_description VARCHAR) Question: How many lines have the segment description of red line mos-2 west? [/INST] SELECT line_s_ FROM table_1817879_2 WHERE segment_description = "Red Line MOS-2 West" </s>