Read the information carefully and answer the questions given below:

Fourteen persons are sitting in two parallel rows containing seven persons each. In row 1 - A, B, C, D, E, F and G are seated and all of them are facing north. While P, Q, R, S, T, U and V are sitting in row-2 and facing south direction but not necessarily in the same order. Persons of row 1 face the persons of row 2. Q sits two places away from the one who faces E. E is the only immediate neighbour of D. U faces the one who sits third to the right of C. The number of persons sit to the right of Q is same as the number of persons sit to the left of G. B sits second to the left of G. One person sits between R and V and both of them do not sit at the extreme ends. S sits right of T but not sit at the extreme ends. A faces the one who sits second to the right of R.

How many persons sit to the left of the one who faces S?

To find the solution, we can determine the seating arrangement step-by-step using the given clues.

1. Understanding the Layout:
We have two parallel rows with 7 persons each.
Row 1 (facing North): A, B, C, D, E, F, G. (Left to Right: Positions 1 to 7)
Row 2 (facing South): P, Q, R, S, T, U, V. (Right to Left: Positions 1 to 7, where Position 1 is on the far left from a North-facing perspective, representing the right end for South-facing persons)

2. Determining Positions in Row 1:
- "E is the only immediate neighbour of D." This implies D must sit at one of the extreme ends (Position 1 or 7) and E must be adjacent to it (Position 2 or 6).
- "Q sits two places away from the one who faces E."
- "The number of persons sitting to the right of Q is the same as the number of persons sitting to the left of G." Since Row 2 faces South, the number of persons to the right of Q is equal to the number of columns to the left of Q (from Position 1). In Row 1, the number of persons to the left of G is also the columns to the left of G. Therefore, Q and G must sit in the same column.
- "B sits second to the left of G." This means G's column must be at least 3.

Let us evaluate the two cases for D and E:
- Case 1: D is at Position 1, E is at Position 2. The one who faces E is at Position 2. Q is two places away from Position 2, which puts Q at Position 4. Consequently, G is at Position 4. B sits second to the left of G, putting B at Position 2. But Position 2 is already occupied by E. Thus, Case 1 is invalid.
- Case 2: D is at Position 7, E is at Position 6. The one who faces E is at Position 6. Q sits two places away, which puts Q at Position 4. Therefore, G is at Position 4. B sits second to the left of G, placing B at Position 2. This case is valid.

Currently, Row 1 looks like this:
_ (1), B (2), _ (3), G (4), _ (5), E (6), D (7)

- "U faces the one who sits third to the right of C." Since C is in Row 1 (North-facing), third to the right of C would be C's position + 3. If C is at Position 3, the person third to the right of C is at Position 6 (E), which means U faces E (Position 6). This fits perfectly. Hence, C is at Position 3, and U is at Position 6 in Row 2.

- "A faces the one who sits second to the right of R." For South-facing Row 2, second to the right of R is R's position - 2. So, A faces R's position - 2, meaning A's position = R's position - 2. Since A can only be at Position 1 or 5, and R cannot sit at the extreme ends (meaning R cannot be at Position 7, so A cannot be at Position 5), A must be at Position 1, which puts R at Position 3. The remaining spot in Row 1 (Position 5) is occupied by F.

Row 1 arrangement:
Position 1: A
Position 2: B
Position 3: C
Position 4: G
Position 5: F
Position 6: E
Position 7: D

3. Determining Positions in Row 2:
- We already know U is at Position 6, Q is at Position 4, and R is at Position 3.
- "One person sits between R and V and both of them do not sit at the extreme ends." Since R is at Position 3, V must be at Position 5.
- "S sits right of T but not at the extreme ends." The remaining open positions are 1, 2, and 7. Since S cannot sit at the extreme ends, S must be at Position 2. S is to the right of T (towards Position 1 for South-facing), which means T is at Position 7. The remaining position 1 is occupied by P.

Row 2 arrangement:
Position 1: P
Position 2: S
Position 3: R
Position 4: Q
Position 5: V
Position 6: U
Position 7: T

4. Answering the Question:
The question asks: "How many persons sit to the left of the one who faces S?"
- S is at Position 2 in Row 2.
- The person facing S is B (at Position 2 in Row 1).
- Since B faces North, the left of B is towards Position 1. Only A (at Position 1) sits to the left of B.
- Thus, there is exactly One person sitting to the left of the one who faces S.