with javascript_semantics
constant sentence = "abracadabra", w1 = "abra", w2 = "bar",
         fmt = """
For the string "%s":
1: Starts with "%s": %t.
   Starts with "%s": %t.
2: Contains "%s": %t%s.
   Contains "%s": %t%s.
3: Ends with "%s": %t.
   Ends with "%s": %t.
"""
function jma(string word, sentence)
    sequence r = match_all(word,sentence)
    return iff(r={} ? "" : ", at "&join(r,", ", " and ","%d"))
end function

printf(1,fmt,{sentence,w1,begins(w1,sentence),
                       w2,begins(w2,sentence),
                       w1,match(w1,sentence),jma(w1,sentence),
                       w2,match(w2,sentence),jma(w2,sentence),
                       w1,ends(w1,sentence),
                       w2,ends(w2,sentence)})