accommodation afainst the sky big-top blue carpark circus color colorful colour colourful display entertainment equipment erecting mobile mobility nylon parking peaks pegs pointed points posts preparation prepare prepared readiness ready red roof ropes sides staff stays team teamwork tent tenting tents tips transport vehicles walls white advice alert appropriate-behavior appropriate-behaviour avoid be-careful below-ground black care careful caution communicating communication concern danger dangerous digging digging-dangers flammable gas gaseous natural-gas no-ignition pipeline pipes potential risk risks risky safety sign signs stay-clear vapour vapours warned warning warning-sign caravans crew framework getting ready hoist hoisting mobile homes pulling together setting up trucks work workers