<｜begin▁of▁sentence｜>### Instruction:
As a travel agent, I have a deep understanding of organizing travel plans and ensuring smooth and enjoyable travel experiences for my clients. In this scenario, it's like comparing and matching two different travel itineraries to see if they are isomorphic, meaning whether they represent the same travel plan despite having different structures or details.

So, let's say a client brought in two proposed travel itineraries, one from a travel agency called graph1 and another from a different one called graph2. The challenge is to use our expertise and knowledge of the travel industry, represented by the "isomorphic function", to determine whether these two itineraries are essentially the same, taking into account the destinations, activities, transportation, accommodations, and overall experience. We want to ensure that both itineraries provide similar travel experiences, even if they are presented in different ways.

In this case, just as we would use our expertise to compare and match travel plans, we can also use the "isomorphic function" in a tool like NetworkX to analyze and compare the structures of the two graphs to see if they are isomorphic, meaning if they represent the same underlying travel plan. This would allow us to ensure that our clients receive the best and most suitable travel options tailored to their preferences, interests, and needs.
### Response:
from igraph import Graph

# Assume we have two GML files representing our graphs
g1 = Graph.Read_GML('graph1.gml')
g2 = Graph.Read_GML('graph2.gml')

# Check if g1 is isomorphic to g2
is_iso = g1.isomorphic(g2)

# Print the result
print('Graphs are isomorphic:' if is_iso else 'Graphs are not isomorphic:')
<|EOT|>
