A computer-implemented method can include receiving, at a computing device having one or more processors, a plurality of textual inputs. Each of the textual inputs can be received in association with an input field. The method can also include receiving, at the computing device, a plurality of unique identifiers. Each unique identifier can be associated one of the plurality of textual inputs and identify a type of the input field. The method can also include building, at the computing device, a language model associated with each particular unique identifier. Each language model can be based on the textual inputs associated with the particular unique identifier. Further, the method can include storing, at the computing device, the language models such that each particular language model can be retrieved based on its associated particular unique identifier.