Word Adjacency Graph of The Little Irish Girl

Here are the lyrics of silent noon with punctuation and capitalization ignored:

lyrics = """as i went out one evening from tiperary town i met a little colleen among the heather brown ah says i perhaps you are lonely she tossed her pretty curl well maybe i prefer it och the dear little girl says i perhaps you are married says she perhaps i am not says i i will be your gossoon says she i will not be caught oh your eyes are like the ocean and your heart is like a pearl says she well then i will keep it och the dear little girl says i i have got a cabin and pigs that number seven and oh with you mavourneen sure the place would be like heaven her eyes looked up in mine then my heart was in a whirl the little pigs had done it och the dear little girl"""
lyrics = lyrics.split(' ')

import networkx as nx
import matplotlib.pyplot as plt

def create_graph(strings):
    # Initialize a directed graph
    G = nx.DiGraph()

    # Add each string as a node
    for s in strings:
        G.add_node(s)

    # Create edges based on adjacency (e.g., consecutive strings in the list)
    for i in range(len(strings) - 1):
        G.add_edge(strings[i], strings[i + 1])

    return G

def plot_graph(G):
    # Generate positions for nodes
    pos = nx.nx_agraph.graphviz_layout(G)

    node_sizes = [len(node) * 100 for node in G.nodes()]  # Adjust 100 to change the scaling factor

    # Draw the graph
    plt.figure(figsize=(8, 30))
    nx.draw(G, pos, with_labels=True, node_color="lightblue", font_size=10, node_size=node_sizes, font_weight="bold", arrows=True)
    plt.title("Word Adjacency in The Little Irish Girl", fontsize=14)
    plt.show()

# Example usage
graph = create_graph(lyrics)
plot_graph(graph)