A stack is a conceptual structure which consists of a set of homogeneous elements and is based on the last in first out (LIFO) principle. This also remains a very important data structure in programming languages. Based on the concept of the LIFO principle, write a program in Python that checks if the parenthesis in the equation "([[y+t]*(j+9v)*{ww+yy})" is balanced or not. Use a class called Stack() with all relevant functions to achieve this task. (15 Marks)