19. A question and answer (Q&A) server, comprising: a processor coupled to a memory storing instructions for execution by the processor; a sentence comprehension engine module, wherein when the instructions are executed by the processor the instructions cause the sentence comprehension engine module, to process a sentence in natural language received by the Q&A server through natural language comprehension, cause the QUA server to obtain language characteristics of a pet owner from a pet owner language information base according to an ID of the pet owner received by the Q&A server, and cause the Q&A server to send a result of natural language comprehension to a reasoning engine module; wherein the language characteristics of the pet owner include language tips and expression manners; the reasoning engine module, wherein when the instructions are executed by the processor the instructions cause the reasoning engine module to generate an answer in natural language based on the language characteristics of the pet owner, reasoning knowledge and the result of natural language comprehension; and a knowledge base, storing the reasoning knowledge.
19. A question and answer (Q&A) server, comprising: a processor coupled to a memory storing instructions for execution by the processor; a sentence comprehension engine module, wherein when the instructions are executed by the processor the instructions cause the sentence comprehension engine module, to process a sentence in natural language received by the Q&A server through natural language comprehension, cause the QUA server to obtain language characteristics of a pet owner from a pet owner language information base according to an ID of the pet owner received by the Q&A server, and cause the Q&A server to send a result of natural language comprehension to a reasoning engine module; wherein the language characteristics of the pet owner include language tips and expression manners; the reasoning engine module, wherein when the instructions are executed by the processor the instructions cause the reasoning engine module to generate an answer in natural language based on the language characteristics of the pet owner, reasoning knowledge and the result of natural language comprehension; and a knowledge base, storing the reasoning knowledge. 21. The server of claim 19 , further comprising: a second information receiving module, wherein when the instructions are executed by the processor the instructions cause the second information receiving module to receive information of a pet to be chatted with; and the reasoning engine module is to obtain language characteristics of the pet owner from the pet owner language information base according to the information of the pet to be chatted with, generates the answer in natural language based on the result of natural language comprehension, the reasoning knowledge stored in the knowledge base, and the language characteristics of the pet owner.