The subroutine SUBSTRING extracts characters from a given string.

For example, SUBSTRING(2, 5, 'Algorithm') would return 'gori'.

The variable y is assigned a value using the statement:

y ← SUBSTRING(3, 6, city)

Using Figure 1, what is the value of y?

Figure 1

county ← 'Yorkshire'
city ← 'Manchester'
stadium ← 'Old Trafford'
team ← 'Red Devils'