Gerhard Bigalk
Ships attacked
Table:
Date

Name

Nationality

Tonnage
(GRT)

Fate

14 June 1941
St. Lindsay
United Kingdom
5,370
Sunk

21 December 1941
HMS Audacity
Royal Navy
11,000
Sunk

2 February 1942
Corilla
Netherlands
8,096
Damaged

4 February 1942
Silveray
United Kingdom
4,535
Sunk

7 February 1942
Empire Sun
United Kingdom
6,952
Sunk

16 May 1942
Nicarao
United States
1,445
Sunk

19 May 1942
Isabela
United States
3,110
Sunk

According to the table named Gerhard Bigalk in the "Ships attacked" section, give a short sentence answer to: What happened to the two heaviest ships Gerhard Bigalk attacked? Respond with the correct answer in JSON format as {"answer": "YOUR ANSWER"}.

answer: Gerhard Bigalk damaged one ship of 8,096 GRT, and sunk one warship of 11,000 tons.