question: Complete the next sentence:

How to open train doors
Check for buttons or handles on or near the doors.
Some trains will have buttons or handles that let you open and close the doors. On other trains, the operator may be the one who controls when the doors open and close.
OPTIONS:
- Check to see if there are handles or open and close buttons on or next to the train doors. These buttons will generally indicate their function with text on or near the button such as " press to open, " or " open " and " close.
- Check to see if the doors in the train have decals on them. Decals or decals will indicate how many doors there are in the train.
- If you're having trouble discovering which door knobs or handles the passengers have access to, inspect any signs on the doors to make sure that they do not come into contact with anyone. Some doors may be labeled with numbers that start with " 1 " or a combination of the four numbers.
- Look for these buttons at specific train entrances. Some train doors may not start as a chat device, but they may also have knobs on the bottom of the door.

answer: Check to see if there are handles or open and close buttons on or next to the train doors. These buttons will generally indicate their function with text on or near the button such as " press to open, " or " open " and " close.

question: Complete the next sentence:

How to avoid common glass tile installation mistakes
Ensure color consistency behind glass tile.
Since glass can be the sole material in an installation, it is essential to choose a bonding mortar that meets its unique demands. In most cases, the color of the thin-set mortar was not an issue when installing opaque ceramic tile.
OPTIONS:
- But with clear and translucent glass, the mortar appears through the tile: if the color varies in the mortar, it will in the glass tile too. To eliminate variations across a glass tile installation, choose a glass tile mortar with a bright white shade that is controlled to a consistent standard color.
- Find a masonry solution solution as described in this article. Masonry solutions used to be sold in commercial suppliers were expensive and less durable than those containing glazed portions.
- Check your online repair and installation guide for common glass tile installation recommendations. If you cannot find the recommended measurements, consult the manufacturer's website or consult the recommended supplies list.
- Spray glass tile debris on the glass tile before continuing. Rinse glass tile debris with water and wipe the water away.

answer: But with clear and translucent glass, the mortar appears through the tile: if the color varies in the mortar, it will in the glass tile too. To eliminate variations across a glass tile installation, choose a glass tile mortar with a bright white shade that is controlled to a consistent standard color.

question: Complete the next sentence:

How to treat syphilis
Recognize the early symptoms of syphilis.
If you think you have syphilis, then you will need to seek a diagnosis and medical treatment. Syphilis has multiple stages with different types of symptoms.
OPTIONS:
- These early stage is more common in cases of fleas and ticks. Fleas are tiny parasites that will start nesting on your fur.
- These early stages of the disease usually start around the age of 35 years. Inform your doctor that you have increased symptoms at this stage of the disease and also have unexplained pain and inflammation.
- It will likely be a " mild " rash or a painful rash with no symptoms. However, there are some other characteristics that can make your rash unique.
- These symptoms may come and go, but it doesn't mean the disease is gone unless you have been treated. In the later stages, you may have no symptoms of syphilis itself but instead suffer from severe effects such as brain, liver, nerve, and bone damage.

answer:
These symptoms may come and go, but it doesn't mean the disease is gone unless you have been treated. In the later stages, you may have no symptoms of syphilis itself but instead suffer from severe effects such as brain, liver, nerve, and bone damage.