81. The system of claim 67 , wherein the at least one hardware processor generates the first of the at least two search queries at least by: performing speech recognition on the voice input using a different language model, different from the first language model, to generate a first recognition result for the voice input; and determining a topic of the voice input by analyzing the first recognition result; determining that the first language model is appropriate for the topic; wherein performing the speech recognition on the voice input using the first language model generates a second recognition result for the voice input; and wherein the at least one hardware processor generates the first of the at least two search queries at least by using the second recognition result to form the first of the at least two search queries.
81. The system of claim 67 , wherein the at least one hardware processor generates the first of the at least two search queries at least by: performing speech recognition on the voice input using a different language model, different from the first language model, to generate a first recognition result for the voice input; and determining a topic of the voice input by analyzing the first recognition result; determining that the first language model is appropriate for the topic; wherein performing the speech recognition on the voice input using the first language model generates a second recognition result for the voice input; and wherein the at least one hardware processor generates the first of the at least two search queries at least by using the second recognition result to form the first of the at least two search queries. 83. The system of claim 81 , wherein the different language model is the second language model.