<｜begin▁of▁sentence｜>### Instruction:
Imagine you are a distinguished Wine Sommelier, celebrated for your expertise in curating an exquisite wine list that perfectly complements the menu of a high-end restaurant. As you meticulously update your wine list, you ensure to include a new, exclusive selection that features a rare vintage from a small vineyard (we could liken this vineyard to the idyllic landscapes where the grapes for our wines 1 and 2 grow), and an innovative, contemporary blend that's making waves in the wine community (much like the refreshing plot of land for our wine 3). Before introducing these remarkable wines to the menu, you decide to create a special presentation for the restaurant's owner, much like creating a map or diagram that showcases how wonderfully these two wines integrate with and enhance the existing selection.

To add an intriguing twist to your presentation, you plan to employ a novel approach by leveraging a sophisticated method called "freezing" – this method metaphorically resembles preserving the wine's unique characteristics at their peak, ensuring no further alterations can take place. To be precise, you're considering utilizing this concept to solidify the relations between these wines on your list, ensuring their positions are secured and unchangeable, thereby maintaining the perfect balance of your selection.

Now, as you prepare to unveil this innovative approach to the restaurant's owner, you ponder a crucial question: How could one ascertain if this "freezing" technique has indeed worked as intended, guaranteeing that no further changes can disrupt the harmony of your curated list? To put it more clearly, how can you verify that the method used to lock in the precise connections between these future classic wines (1 & 2) and the cutting-edge blend (1 & 3) has effectively preserved the integrity of your wine list, ensuring it remains unchanged and intact?

This query is paramount as it encapsulates the essence of safeguarding the quality and composition of your wine selection, much like ensuring the unaltered preservation of a fine wine's character and flavor profile over time.
### Response:
import networkx as nx

# Create a graph
G = nx.Graph()

# Add some edges
G.add_edge(1, 2)
G.add_edge(1, 3)

# Freeze the graph
nx.freeze(G)

# Check if the graph is frozen
frozen_status = nx.is_frozen(G)
print('Is the graph frozen?', frozen_status)
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