Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which Conceded is the highest one that has Points larger than 17, and a Team of guaraní, and Losses smaller than 6?

### Inputs:
table_name: table, columns: ['Position', 'Team', 'Played', 'Wins', 'Draws', 'Losses', 'Scored', 'Conceded', 'Points']

### Response:
SELECT MAX Conceded FROM table WHERE Points > 17 AND Team = guaraní AND Losses < 6