Represent a Graph of V nodes and E edges in Python.

```
"""
Simplest possible graph representation.abs
In theory, Graph is represented with vertices "V" and edges "E". We use the same notation here.
Expected Output
---------------
['a', 'c', 'b']
True
True
"""
class Graph:
def __init__(self , g):
self.g = g
def V(self):
return self.g.keys()
def E(self, node1, node2):
return node2 in self.g[node1]
if __name__ == '__main__':
gobject = Graph({"a":["b","c"],"b":["e","c"],"c":["a","b"]})
print(gobject.V())
print(gobject.E("a","c"))
print(gobject.E("b","e"))
```