user
Instruction
Answer the question based on the provided table.


Table
Table Title: Eagle-class patrol craft
Table Content:
| Designation | Keel Laid | Launched | Commissioned | Fate |
| --- | --- | --- | --- | --- |
| PE-1 | 7 May 1918 | 11 July 1918 | 27 October 1918 | Sold 11 June 1930 |
| PE-2 | 10 May 1918 | 19 August 1918 | 11 July 1918 | Sold 11 June 1930 |
| PE-3 | 16 May 1918 | 11 September 1918 | 11 November 1918 | Sold 11 June 1930 |
| PE-4 | 21 May 1918 | 15 September 1918 | 14 November 1918 | Sold 11 June 1930 |
| PE-5 | 28 May 1918 | 28 September 1918 | 19 November 1918 | Sold 11 June 1930 |
| PE-6 | 3 June 1918 | 16 October 1918 | 21 November 1918 | Expended as target 30 November 1934 |
| PE-7 | 8 June 1918 | 5 October 1918 | 24 November 1918 | Expended as target 30 November 1934 |
| PE-8 | 10 June 1918 | 11 November 1918 | 31 October 1919 | Sold 1 April 1931 |
| PE-9 | 17 June 1918 | 8 November 1918 | 27 October 1919 | Sold 26 May 1930 |
| PE-10 | 6 July 1918 | 9 November 1918 | 31 October 1919 | Destroyed 19 August 1937 |
| PE-11 | 13 July 1918 | 14 November 1918 | 29 May 1919 | Sold 16 January 1935 |
| PE-12 | 13 July 1918 | 12 November 1918 | 6 November 1919 | Sold 30 December 1935 |
| PE-13 | 15 July 1918 | 9 January 1919 | 2 April 1919 | Sold 26 May 1930 |
| PE-14 | 20 July 1918 | 23 January 1919 | 17 June 1919 | Expended as target 22 November 1934 |
| PE-15 | 21 July 1918 | 25 January 1919 | 11 June 1919 | Sold 14 June 1934 |
| PE-16 | 22 July 1918 | 11 January 1919 | 5 June 1919 | Transferred to USCG late 1919 |
| PE-17 | 3 August 1918 | 1 February 1919 | 3 July 1919 | Wrecked off Long Island, New York 22 May 1922 |
| PE-18 | 5 August 1918 | 10 February 1919 | 7 August 1919 | Sold 11 June 1930 |
| PE-19 | 6 August 1918 | 30 January 1919 | 25 June 1919 | In service during WWII\nDestroyed 6 August 1946 |
| PE-20 | 26 August 1918 | 15 February 1919 | 28 July 1919 | Transferred to USCG late 1919 |
| PE-21 | 31 August 1918 | 15 February 1919 | 31 July 1919 | Transferred to USCG late 1919 |
| PE-22 | 5 September 1918 | 10 February 1919 | 17 July 1919 | Transferred to USCG late 1919 |
| PE-23 | 11 September 1918 | 20 February 1919 | 19 June 1919 | Sold 11 June 1930 |
| PE-24 | 13 September 1918 | 24 February 1919 | 12 July 1919 | Sold 11 June 1930 |
| PE-25 | 17 September 1918 | 19 February 1919 | 30 June 1919 | Capsized in Delaware Bay squall 11 June 1920 |
| PE-26 | 25 September 1918 | 1 March 1919 | 1 October 1919 | Sold 29 August 1938 |
| PE-27 | 22 October 1918 | 1 March 1919 | 14 July 1919 | In service during WWII\nSold 4 June 1946 |
| PE-28 | 23 October 1918 | 1 March 1919 | 28 July 1919 | Sold 11 June 1930 |
| PE-29 | 18 November 1918 | 8 March 1919 | 20 August 1919 | Sold 11 June 1930 |
| PE-30 | 19 November 1918 | 8 March 1919 | 14 August 1919 | Transferred to USCG late 1919 |
| PE-31 | 19 November 1918 | 8 March 1919 | 14 August 1919 | Sold 18 May 1923 |
| PE-32 | 30 November 1918 | 15 March 1919 | 4 September 1919 | In service during WWII\nSold 3 March 1947 |
| PE-33 | 14 February 1918 | 15 March 1919 | 4 September 1919 | Sold 11 June 1930 |
| PE-34 | 8 January 1919 | 15 March 1919 | 3 September 1919 | Sold 9 June 1932 |
| PE-35 | 13 January 1919 | 22 March 1919 | 22 August 1919 | Sold 7 June 1938 |
| PE-36 | 22 January 1919 | 22 March 1919 | 20 August 1919 | Sold 27 February 1936 |
| PE-37 | 27 January 1919 | 25 March 1919 | 30 September 1919 | Sold 11 June 1930 |
| PE-38 | 30 January 1919 | 29 March 1919 | 30 July 1919 | In service during WWII\nSold 3 March 1947 |
| PE-39 | 3 February 1919 | 29 March 1919 | 20 September 1919 | Sold 7 June 1938 |
| PE-40 | 7 February 1919 | 5 April 1919 | 1 October 1919 | Expended as target 19 November 1934 |
| PE-41 | 20 February 1919 | 5 April 1919 | 26 September 1919 | Sold 11 June 1930 |
| PE-42 | 13 February 1919 | 17 May 1919 | 3 October 1919 | Sold 11 June 1930 |
| PE-43 | 17 February 1919 | 17 May 1919 | 2 October 1919 | Sold 26 May 1930 |
| PE-44 | 20 February 1919 | 24 May 1919 | 30 September 1919 | Disposed of 14 May 1938 |
| PE-45 | 20 February 1919 | 17 May 1919 | 2 October 1919 | Sold 11 June 1930 |
| PE-46 | 24 February 1919 | 24 May 1919 | 3 October 1919 | Sold 10 December 1936 |
| PE-47 | 3 March 1919 | 19 June 1919 | 4 October 1919 | Sold 30 December 1935 |
| PE-48 | 3 March 1919 | 24 May 1919 | 8 October 1919 | Sold 10 October 1946 |
| PE-49 | 4 March 1919 | 14 June 1919 | 10 October 1919 | Sold 20 September 1930 |
| PE-50 | 10 March 1919 | 18 July 1919 | 6 October 1919 | Sold 11 June 1930 |
| PE-51 | 10 March 1919 | 14 June 1919 | 2 October 1919 | Sold 29 August 1938 |
| PE-52 | 10 March 1919 | 9 July 1919 | 10 October 1919 | Sold 29 August 1938 |
| PE-53 | 17 March 1919 | 13 August 1919 | 20 October 1919 | Sold 26 August 1938 |
| PE-54 | 17 March 1919 | 17 July 1919 | 10 October 1919 | Sold 26 May 1930 |
| PE-55 | 17 March 1919 | 22 July 1919 | 10 October 1919 | In service during WWII\nSold 3 March 1947 |
| PE-56 | 25 March 1919 | 15 August 1919 | 26 October 1919 | In service during WWII\nTorpedoed by U-853 off Portland, Maine, on 23 April 1945 |
| PE-57 | 25 March 1919 | 29 July 1919 | 15 October 1919 | In service during WWII\nSold 5 March 1947 |
| PE-58 | 25 March 1919 | 2 August 1919 | 20 October 1919 | Disposed of 30 June 1940 |
| PE-59 | 31 March 1919 | 12 April 1919 | 19 September 1919 | Sold 29 August 1938 |
| PE-60 | 31 March 1919 | 13 August 1919 | 27 October 1919 | Sold 29 August 1938 |


Question
what is the difference in days between the first two "keel laid" dates?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["3 days"]