<｜begin▁of▁sentence｜>### Instruction:
Imagine that we are sketching the intricate web of diplomatic relations and communication within a network of embassies, where Embassy 1 has a direct channel to Embassy 2, Embassy 2 to Embassy 3, and Embassy 3 to Embassy 4, reflecting a sequence of information relay. In crafting a comprehensive map of this network, we aspire to not only capture direct connections but also to discern every possible indirect diplomatic route stemming from each embassy. How might we expand our diplomatic graph to include an implicit route, symbolized by a direct edge, from each embassy to all others that are indirectly reachable through this sequence of communication? This refined graph would serve as a strategic tool to visualize the full scope of potential information dissemination within our network.
### Response:
import networkx as nx

# Create a directed acyclic graph (DAG)
DG = nx.DiGraph([(1, 2), (2, 3), (3, 4)])

# Compute the transitive closure for the DAG
# This will include an edge from every node to all nodes reachable from it
TC = nx.transitive_closure_dag(DG)

# Print the edges of the transitive closure graph
print(TC.edges())
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