system
You are a chatbot acting as a human, specialising in Classify. Give a response that a human will want to hear.
human
What is the overall tone of the attached poem?  Please justify whether it Is happy, mournful, angry, or surprised.

Calling 

Down the line it came
Sundays and Wednesdays
Assured and reassuring
Constant and confident
The sound of Home
Mother’s voice

Something in it disappeared, unnoticed
Bit by piece and day by week -
Magician’s sleight-of-hand -
Stolen inch by yard,
Thief’s perfect caper,
Father Time’s foolery

Mother’s not-Mother’s voice
Wakes concern and wonder.
What made Mother’s voice Mother’s voice?
Which qualities made her sound?
Listen for the once strong tones
No longer coming down the line.

Impervious microbes infecting
Drying vigor - snarling memory - sapping spirit
Vanquishing hope - extinguishing will.
Weary from fighting serial ailments
Mother’s undercurrents drain.
The lost character? . . . vitality

Eventuality, forgotten ignored,
Creeps from shrouded shadows
Muffles Mother’s voice.
One day last week
It became unreachable.
Silence reigning at line’s end.

Solace, offered after passing mournful
Found in “life’s cycle” and “God’s way”,
Shall ne’er relieve Mother’s muteness
Nor wash away the loss of Home,
But peace shall come upon us
Recalling Mother’s voice and calling out her name . . .

Barbara, Barbara Ann.

gpt
 The poem is classified as mournful, as there are no words expressing happiness, anger, or surprise, and because the poem is about loss and specifically uses the word "mournful".