IN: Write the next sentence in this paragraph:
How to treat a hydrofluoric acid burn
Recognize the effects of hydrofluoric acid.
Hydrofluoric acid (hf) contact with skin can cause severe chemical burns. Direct contact with hf can cause major damage to your skin tissue, as hf is a corrosive substance that burns.
OPTIONS:
- If you are trying to treat an hf burn at home, talk to your doctor before proceeding to handle it. An hf burn is caused by the trapped chemical co2 in the body.
- It can also penetrate the skin and cause even further damage under the skin. This can be even worse, depending on the concentration of the acid and the length of exposure.
- The reactions that occur can cause both skin damage and negative consequences for your skin. Hf injections also cause symptoms that are unusual and potentially serious, like skin blisters, rashes, and boils.
- Avoid direct contact with hf after a sore or achy burn, as your skin might soften in response. Do not use hf to treat an injured wart, or you could develop another burn.

OUT: It can also penetrate the skin and cause even further damage under the skin. This can be even worse, depending on the concentration of the acid and the length of exposure.

IN: Write the next sentence in this paragraph:
How to shrink wrap a pallet
Place your heat-shrink bag over your items and pallet.
If you do not have heat-shrink bags and are using manually applied film, use the steps in the guide " preparing to shrink-wrap using manually applied film " below.
Make sure that the bag is snug over the pallet and items.
OPTIONS:
- Simply let the bag's top layer of film drape over the edge of the pallet. It should act as a barrier against heat.
- If possible place racks to fasten the bag to your pallet instead. Make sure that the heat-shrink bag covering the pallet is roughly the same shape as your items.
- If the bottom of the bag is barely covering your items, you can leave it alone, as it will shrink up around the edge. Place your item anywhere on the pallet that you see the least amount of light.
- It does not need to be tight, but it shouldn't be too loose. Tuck the excess plastic at the bottom of the bag around the corners and edges of the pallet.

OUT: It does not need to be tight, but it shouldn't be too loose. Tuck the excess plastic at the bottom of the bag around the corners and edges of the pallet.

IN: Write the next sentence in this paragraph:
How to legally dispute internet transactions
Gather information about the transaction.
Before you do anything, get all the documentation you have regarding the transaction-including receipts, confirmation emails, and shipping notifications-and make copies to share with the merchant.
You want to be able to explain to the merchant exactly what the problem is and how you'd like it resolved.
OPTIONS:
- If you want a refund because the product you received was faulty or defective in some way, or arrived broken, you might want to take pictures of it. This could be helpful to your case assuming the damage is something visible.
- For example, you may need to supply the merchant with a letter to dispute the transactions. A letter or email of a different address will not resolve the issue-even if it's an email.
- For instance, you could include a receipt for a transaction containing high quality flat-rate x10 ounces as payment. Figure out exactly what the seller did that actually created the transaction.
- Sign the transaction in front of a notary. Once you're satisfied that you have everything you need to dispute internet transactions, print the form out and make your signature.

OUT:
If you want a refund because the product you received was faulty or defective in some way, or arrived broken, you might want to take pictures of it. This could be helpful to your case assuming the damage is something visible.