In the third form, if the condition is true, then the first set of commands is performed. If the condition is false, and if the second condition is true, then the second set of commands is performed.
Roast your pork shoulder in the oven at 350 degrees F for 30 to 35 minutes per pound for a nice slicing roast. At this temperature, a 6-pound pork shoulder will require 3 to 3 1/2 hours to roast. Check for doneness by placing a meat thermometer into the roast at the thickest point. Be careful not to touch the bone.
A crown roast that weighs 6 to 10 pounds takes 20 minutes per pound to cook in an oven set to 325 degrees Fahrenheit. A shoulder roast that weighs 3 to 6 pounds also takes 20 minutes per pound at an oven set to this temperature.