Give IUPAC name for each of the following
`{:(C_(6)H_(5)-CH=C-C_(6)H_(5)),(" |"),(" "CHO):}`

Explanation

To derive the IUPAC name for the compound given in the question, we will follow these steps:

### Step 1: Identify the Structure
The compound consists of a propene chain with two phenyl groups and an aldehyde functional group. The structure can be represented as follows:
- Two phenyl groups (C6H5) attached to a carbon chain.
- The carbon chain has a double bond and an aldehyde group (CHO).

### Step 2: Determine the Principal Functional Group
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