Rewrite the following sentence by replacing the underlined word with a substitute word: 

Recently he has been donating large sums of money to the charity.
Recently he has been contributing large sums of money to the charity.
Complete the following task based on the instruction and optional input provided.### Instruction:
Rewrite the following sentence by replacing the underlined word with a substitute word: 

Recently he has been donating large sums of money to the charity.

### Output:
Recently he has been contributing large sums of money to the charity.