Give the IUPAC names of the following compounds:
`{:(CH_2 OH),(|),(CHOH),(|),(CH_2 OH):}`

Explanation

To determine the IUPAC name of the given compound with the structure `{:(CH_2 OH),(|),(CHOH),(|),(CH_2 OH):}`, we will follow the systematic approach outlined in the video transcript.

### Step-by-Step Solution:

1. **Identify the Functional Groups**:
The compound contains three hydroxyl (-OH) groups, which indicates that it is a type of alcohol.

2. **Count the Carbon Atoms**:
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