You are a medical doctor specialized in cancer diagnosis. 
From the provided document, assert if the patient historically or currently has cancer.
For each condition, only pick from "YES", "NO", or "MAYBE". And you must following format without anything further. The results have to be directly parseable with python json.loads(). 
Sample output: {"cancer": 'MAYBE'}.
Never output anything beyond the format.
Provided document: 
Discharge Summary:

Patient Name: [Redacted]
Age: 65
Sex: Male
Admission Date: [Redacted]
Discharge Date: [Redacted]
Admitting Diagnosis: Recurrent Oral Cavity Squamous Cell Carcinoma

Hospital Course:

The patient was admitted to the hospital on [Redacted] with the diagnosis of recurrent oral cavity squamous cell carcinoma. The patient underwent a composite resection of the floor of mouth, mandible and chin pad. A left fibular free flap with a skin paddle of 15 cm x 14 cm was used for reconstruction and four osteotomies were made in the fibula to reconstruct the angle-to-angle bony defect.

The anastomoses of the peroneal artery and its two venae comitantes were done to the right facial artery, right external jugular vein, and right common facial vein, respectively. The pedicle to the anterior tibial perforator was then sewn to the distal ends of the peroneal artery and of one of the venae comitantes.

Throughout the hospital course, the patient was closely monitored and treated for pain as needed. Appropriate wound care was provided to the surgical site. The patient was also provided with nutritional support and education to aid in the healing process.

The patient's post-operative course was uneventful, and the patient was discharged on [Redacted] with the appropriate post-operative care instructions. The patient was also given a follow-up appointment with their surgical team to monitor their progress and ensure a complete recovery.

Discharge Medications:
None.

Discharge Diagnoses:
Recurrent oral cavity squamous cell carcinoma.
Postsurgical fibular free flap reconstruction of the floor of mouth, mandible and chin pad.

Discharge Instructions:
The patient is advised to continue practicing good wound care and nutritional support practices as advised by their care team. The patient is also advised to attend their scheduled follow-up appointments with their surgical team. Any concerns or issues should be addressed promptly with their physician.

Provider Name: [Redacted]
Provider Signature: [Redacted]
Date/Time Signed: [Redacted]

omosis was repaired.

The patient was returned