Join the following sentences using a subordinating conjunction.
She went to the store. She wanted to buy ice cream.
She went to the store because she wanted to buy ice cream.
Complete the following task based on the instruction and optional input provided.### Instruction:
Join the following sentences using a subordinating conjunction.

### Input:
She went to the store. She wanted to buy ice cream.

### Output:
She went to the store because she wanted to buy ice cream.