Pangram checker

You are encouraged to solve this task according to the task description, using any language you may know.
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.



Task

Write a function or method to check a sentence to see if it is a   pangram   (or not)   and show its use.



Related tasks

   determine if a string has all the same characters
   determine if a string has all unique characters


 
$$ MODE TUSCRIPT,{}
alfabet="abcdefghijklmnopqrstuvwxyz"
sentences = *
DATA The quick brown fox jumps over the lazy dog
DATA the quick brown fox falls over the lazy dog
LOOP s=sentences
 getchars      =STRINGS    (s," {&a} ")
 sortchars     =ALPHA_SORT (getchars)
 reducechars   =REDUCE     (sortchars)
 chars_in_s    =EXCHANGE   (reducechars," '  ")
 IF (chars_in_s==alfabet) PRINT "   pangram: ",s
 IF (chars_in_s!=alfabet) PRINT "no pangram: ",s
ENDLOOP
 