There were three choices, I got the winter melon tea which cost $16.
I requested for a not so sweet version, but they insisted giving me full sweetness and I could dilute it if necessary, so I guess I got more than 1000cc worth, since it was too sweet, and dilution was needed.
Overall, wintermelon tasted like Pandan, it was made from wintermelon syrup and diluted infront of me.