Which of these is edible or not edible:
 1. Banana
 2. Laptop
 3. Marmite
 4. Tape
 5. Mushroom
 6. Pizza
The following are edible:
 1. Banana
 2. Marmite
 3. Pizza
 
 The following are not edible:
 1. Laptop
 2. Tape
 
 The following may or may not be edible: 
 1. Mushroom