What are the examples of the following instances?

(1) When after the obligation has been

contracted, he becomes insolvent, unless he gives a guaranty or security for the debt;

(2) When he does not furnish to the creditor the

guaranties or securities which he has promised;

(3) When by his own acts he has impaired said

guaranties or securities after their establishment, and when through a fortuitous event they

disappear, unless he immediately gives new ones equally satisfactory;

(4) When the debtor violates any undertaking, in

consideration of which the creditor agreed to the

period;

(5) When the debtor attempts to abscond