Related by context. Frequent words. (Click for all words.) 57 standpipe 50 Joseph Graffagnino 45 sprinkler system 44 faulty electrical wiring 44 shutoff valve 43 leak 43 spokesman Chris Olert 43 Al Santostefano 42 Repair crews 42 smoke detectors 42 leaks 42 oxygen tanks 42 Schapelhouman 42 retardant drops 42 isomerization unit 42 faulty wiring 42 structural soundness 42 hydrants 42 flammable foam 42 hazardous fumes 41 fireproofing 41 electrical wiring 41 extinguishers 41 ventilation ducts 41 Beltsov 41 Upon arrival firefighters 41 Beddia 41 Graffagnino 41 ductwork 41 blaze 41 gallon propane tank 41 air conditioning duct 41 elevator shafts 41 leaking 41 Scoppetta 41 hydrant 40 electrical malfunction 40 Big Dig tunnels 40 smoke detector 40 properly ventilated 40 slurry wall 40 exhaust vent 40 Arson Unit 40 propane tank 40 structurally unsafe 39 spokesman Daniel Berlant 39 fire hydrants 39 scaffolding 39 ventilation 39 sprayed foam 39 faulty valve 38 Commissioner Nicholas Scoppetta 38 Firefighters doused 38 crews 38 stairwells 38 oxygen canisters 38 wiring plumbing 38 highly flammable liquid 38 propane leak 38 structural defects 38 spokesman Viktor Beltsov 38 propane tanks 38 flammable substances 38 asbestos contamination 38 pipework 38 investigators 38 hoses 38 smoke alarms 37 hazmat crews 37 blown fuse 37 ventilating 37 malfunction 37 mechanical malfunction 37 blowout preventer 37 flammable materials 37 wearing breathing apparatus 37 crane collapses 37 exterior siding 37 hydraulic leak 37 manhole 37 reactor containment 37 sprinklers 37 carbon monoxide fumes 37 containment vessel 37 cockpit voice 37 kerosene heater 37 Structural engineers 37 Bouillard 37 structural integrity 37 gasoline vapors 37 extinguishing 37 odorless colorless gas 37 Pablo Cerda 37 propane tank exploded 37 fire marshall 36 ruptured pipe 36 unattended candle 36 fire 36 dryer vent 36 Piringer 36 faulty