THIS HAS TO BE WRITTEN IN THE *OCAML* LANGUAGE PLEASE

Your program will consist of a function that accepts two strings. Each string is the name of a file. The first is the name of an input file and the second is the name of an output file. Name the function pangram. (Note that your program can also make use of other helper functions. Just make sure function pangram takes as arguments the input file and output file that are specified in the program) A pangram is a sentence that contains all the letters of the English alphabet at least once. For example, the quick brown fox jumps over the lazy dog is a pangram. The program you are to write must read in an input file (input.trt - a plain text file which contains 5 sentences), line by line and check if the line read is a pangram or not. If the sentence read is a pangram, it writes true to the output file. If it is not, it writes false to the output file For example, if input.txt contains: we promptly judged antique ivory buckles for the next prize how quickly daft jumping zebras vex pottery is an art crazy fredrick bought many very exquisite opal jevelas mr. dumbledore is a funny name for a dog Then your program must output the following to the output.txt: true true false true false