Question: Which medical malady affects famous people including Melissa Etheridge?
Choices: osteoporosis
systemic lupus erythematosus
breast cancer
attention deficit hyperactivity disorder
gastroesophageal reflux disease
prostate cancer
testicular cancer
alcoholism
epilepsy
poliomyelitis
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "disease" . ?e <notable_people_with_this_condition> ?e_1 . ?e_1 <pred:name> "Melissa Etheridge" .   }
Program:
function: Find
inputs: Melissa Etheridge
function: Relate
dependencies: 0
inputs: notable people with this condition
backward
function: FilterConcept
dependencies: 1
inputs: disease
function: What
dependencies: 2
Answer: breast cancer