Problem: Write the next sentence for:
How to polish rocks
Choose the right rock.
You can polish any stone you wish, but there are certain characteristics of a stone that will make it easier to polish. If you want an easy stone to polish, pick a somewhat softer stone like onyx, limestone or calcite.

OPTIONS:
- You can polish diamond, granite or ceramic stones by cutting thin pipe holes or inserting dry mortar into one side of each hole. Look for a stone that resembles a diamond, but not necessarily a diamond.
- Otherwise, a smoother, more pumice-like stone will be more difficult to polish. Emeralds and equilateral manganese are both excellent mineral polishes.
- Stones that are very hard will take a much longer time to polish. However, though hard rocks take a long time to sand, they yield more shine than softer rocks.
- Softer rocks will actually work more well, and might look better to polish very old stones, but brighter stones tend to chip quicker. Rubies, sapphires, and emerald are good options..

Next sentence: Stones that are very hard will take a much longer time to polish. However, though hard rocks take a long time to sand, they yield more shine than softer rocks.

Problem: Write the next sentence for:
How to introduce two guinea pigs to each other
Determine the sex of your guinea pigs.
Sex makes a big deal when it comes to how guinea pigs interact with one another. Before you introduce them, you must determine their sex.

OPTIONS:
- Male guinea pigs are generally about 4 to 6 months old. Female guinea pigs are about 4 to 6 months old.
- As an example, red or pink guinea pigs each have three characteristics that make them ideal if not vaccinated against the common genital disease. Red or pink guinea pigs are naturally " friendly " to other guinea pigs.
- The scrotum will be more distinct than the c-section and grow outward, while the c-section will have further internal organs within it. A male or female guinea pig will have slightly larger, fuller genitalia (male) and a wider vulva (female).
- Pet shop employees often make mistakes, and if you're buying a guinea pig from a pet store the chance of error is even higher. You should examine your guinea pig on the floor or a very low table..

Next sentence: Pet shop employees often make mistakes, and if you're buying a guinea pig from a pet store the chance of error is even higher. You should examine your guinea pig on the floor or a very low table.

Problem: Write the next sentence for:
How to apply dry rub to chicken
Find a spice rub recipe that fits the type of cuisine you would like to serve.
Because spice rubs are common among many cultures, there is no universal spice rub recipe.
Defrost your chicken, if necessary.

OPTIONS:
- Wash it under clean, running water, and then fill a plastic zipper bag to submerge the chicken in the water. This will also keep the spice rub warm for up to one hour.
- Often times, dry rub works best with chicken that has been freshly ground and chopped in preparation and added to the dish. Rub the spices in a mixture of cornstarch, water and salt.
- Dry rub recipes will drain the oil while the chicken is still hot, causing it to warp. The hotter the longer the rub will need to sit.
- For best results, place it in the refrigerator 24 hours before you want to rub the chicken. This will allow it to defrost more evenly than placing it in the microwave..

Next sentence: For best results, place it in the refrigerator 24 hours before you want to rub the chicken. This will allow it to defrost more evenly than placing it in the microwave.

Problem: Write the next sentence for:
How to broil chicken breasts
Buy chicken breasts.
You can purchase either fresh or frozen chicken breasts. If you choose frozen chicken breasts, however, keep in mind that you'll have to completely defrost them before broiling.

OPTIONS:
- Leftover chicken breasts can be cooked while fully thawed. Purchase a pre-cooked chicken breast directly from your local deli or farmer's market.
- You can broil chicken breasts with or without skin. Rub each chicken breast with olive oil or another similar oil.
- To prepare them, begin by taking out any nipples, nailing them in place or cooking them with butter or olive oil. Turn on a broiler and toast the chicken breasts.
- Frozen chicken breasts can usually be found in the refrigerated section of your grocery store. Pre-cut chicken breasts typically have a thickness of 1 to 3 inches (2.5 to 3.8 cm) at the top, which usually indicates freshness..

Next sentence:
You can broil chicken breasts with or without skin. Rub each chicken breast with olive oil or another similar oil.