Please choose the correct ending to complete the given sentence: Work World: [header] How to care for a sheep with pneumonia [title] Remove the sick sheep from your herd. [step] Pneumonia, in some cases, can quickly spread from one sheep to another and result in deaths. Take the afflicted sheep and put them in a quarantine separate from the rest of the herd making sure they do not share grazing land, food, or water supplies.

Ending1: [substeps] If the infected sheep go into quarantine, it's often a good idea to get the sick sheep to a vet or medical facility. [title] Place the sick sheep safely in a locked pen set out for free at all times. Ending2: [title] Seek professional help if your sheep have come to a complete natural death. [step] Injuring the sheep in this manner could easily result in fatal illness. Ending3: [substeps] For recovery sake, you'll want them to be placed in a warm and dry environment. This will prepare them to weather symptoms better as humid environments can exasperate breathing problems and extreme temperatures can hinder recovery. Ending4: All of the animals will most likely sleep in separate shelters. [substeps] You should also cover the grassy areas of the pasture and fence each space with oxygen-powered wire.

Answer format: ending1/ending2/ending3/ending4