Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Segment description | Date opened | Line(s) | Endpoints | # of new stations | Length (miles) |
| --- | --- | --- | --- | --- | --- |
| Blue Line Initial Segment | July 14, 1990 | Blue | Pico to Anaheim Street | 17 | 19.1 |
| Blue Line Long Beach Loop | September 1, 1990 | Blue | Anaheim Street to Pacific | 4 | 2.2 |
| Blue Line To Financial District | February 15, 1991 | Blue | Pico to 7th St/Metro Center | 1 | 0.7 |
| Red Line MOS-1 | January 30, 1993 | Red, Purple 1 | Union Station to Westlake/MacArthur Park | 4 2 | 4.4 |
| Green Line | August 12, 1995 | Green | Redondo Beach to Norwalk | 13 2 | 20.0 |
| Red Line MOS-2 West | July 13, 1996 | Red, Purple 1 | Westlake/MacArthur Park to Wilshire/Western | 3 | 2.0 |
| Red Line MOS-2 North | June 12, 1999 | Red | Wilshire/Vermont to Hollywood/Vine | 5 | 4.7 |
| Red Line MOS-3 | June 24, 2000 | Red | Hollywood/Vine to North Hollywood | 3 | 6.3 |
| Gold Line To Pasadena | July 26, 2003 | Gold | Union Station to Sierra Madre Villa | 12 2 | 13.7 |
| Gold Line Eastside Extension | November 15, 2009 | Gold | Union Station to Atlantic | 8 | 6.0 |
| Expo Line Initial Segment | April 28, 2012 | Expo | Flower/Washington to La Cienega/Jefferson 3 | 8 | 7.7 |
| Expo Line Culver City Extension | June 20, 2012 | Expo | La Cienega/Jefferson to Culver City | 2 4 | 1.0 |
Question:
How many lines have the segment description of red line mos-2 west?
Answer:
Red, Purple 1