The animal situation in a zoo is as follows: 1 if the number of horses increases or the lion becomes pregnant, then the number of elephants dies or the number of rabbits does not increase; 2 if the number of cattle is sick or the number of wolves decreases, then the number of rabbits increases and the number of horses increases If the elephants die or the number of goats increases, then the cattle are not sick or the number of horses does not increase. Based on the above conditions, which of the following can be determined? ['Reduced number of wolves.', 'Lion pregnancy.', 'Increased number of goats.', 'Cows are not sick.']