From the following list, select the items which are examples of unstructured data.
images, audio clips, tweets, spreadsheets
Examples of unstructured data from the given list are: images, audio clips, and tweets.
Complete the following task based on the instruction and optional input provided.### Instruction:
From the following list, select the items which are examples of unstructured data.

### Input:
images, audio clips, tweets, spreadsheets

### Output:
Examples of unstructured data from the given list are: images, audio clips, and tweets.