Study the following information carefully and answer the question given below.

Lata, Sneha, Nisha, Rashi, Gori, Madhu and Tisha standing in a row facing towards north according to their height. The one who stand extreme left is shortest and who stand extreme right is tallest group. Lata stand third to the left of Rashi and Sneha stand third to the left of Gori. Only one person is between Sneha and Rashi. Nisha is shortest than Madhu but not shortest in the group and Tisha stand extreme right of the row ?

How many girls stand between Sneha and Tisha ?

4