how many hs can you find in:
diagnosis of cd30+ classical hodgkin lymphoma reconfirmed by histopathology. note: where reconfirmation is not possible, patients will still be eligible where they have confirmation clearly documented in their medical records.
relapsed or refractory disease after standard therapy including brentuximab vedotin (adcetris®).
completion of, if applicable, radiotherapy, chemotherapy, antibodies and immunoconjugates including brentuximab vedotin and/or another investigational drug which could interact with this trial not less than 4 weeks (or 5 half-lives of the drug, whichever occurs later) prior to first dose of study drug. cessation of small molecule tyrosine kinase inhibitors must be at least 7 days prior to first dose of study drug.
completion of, if applicable, an autologous stem cell transplantation (asct) at least 3 months prior to first dose of study drug.
eastern cooperative oncology group (ecog) performance score (ps) <2.
has received prior therapy with an anti-pd-1, anti-pd-l1, or anti-pd-l2 agent or if the patient has previously participated in mk-3475 clinical trials.
prior allogeneic stem cell transplantation (sct) within the last 5 years.
major surgery within 4 weeks prior to first dose of study drug.

user
I found 33 "h"s in the provided passage.
assistant