Real ChatGPT answer · index seedpETE7MLrmUQcompleteTelecom and utilities · phone planslocal

Which low-cost carrier has the best 5G coverage inside the subway stations and tunnels around Boston?

ChatGPTgpt-63 queries11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
Which low-cost carrier has the best 5G coverage inside the subway stations and tunnels around Boston?
3 real searches · 1 real-search pass
Boston MBTA subway cellular coverage Verizon AT&T T-Mobile tunnels stations 2026Google ↗
OBSERVEDOther / navigational
Boston MBTA subway tunnel cellular 5G coverage Verizon AT&T T-Mobile carriers stations tunnelsGoogle ↗
OBSERVEDComparison
MBTA cellular service subway tunnels carrier coverage Boston 5G 2025 2026Google ↗
OBSERVEDOther / navigational

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

ChatGPT real searches (3)
Short factOther / navigational67%Comparison33%ConsequenceReasonDefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT3 real searches · gpt-6
Boston MBTA subway cellular coverage Verizon AT&T T-Mobile tunnels stations 2026 Google ↗
Boston MBTA subway tunnel cellular 5G coverage Verizon AT&T T-Mobile carriers stations tunnels Google ↗
MBTA cellular service subway tunnels carrier coverage Boston 5G 2025 2026 Google ↗

Queries

3 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Boston MBTA subway cellular coverage Verizon AT&T T-Mobile tunnels stations 2026
OBSERVED
Google ↗
AI Mode ↗
—Other / navigational——1x
of 1
Boston MBTA subway tunnel cellular 5G coverage Verizon AT&T T-Mobile carriers stations tunnels
OBSERVED
Google ↗
AI Mode ↗
—Comparison——1x
of 1
MBTA cellular service subway tunnels carrier coverage Boston 5G 2025 2026
OBSERVED
Google ↗
AI Mode ↗
—Other / navigational——1x
of 1