Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

[EX Q]: Question: Do a Profilometric Study to Assess the Role of Toothbrush and Toothpaste in Abrasion Process?
Answer: Besides supporting the fact that toothpaste is needed to create a significant abrasion, this study also showed that a softer toothbrush can cause more abrasion than harder ones. The flexibility of bristles is only secondary to abrasion process and abrasivity of dentifrice has an important role in abrasion process.
[EX A]: yes

[EX Q]: Question: Does multiple Intercostal Space Electrocardiogram allow Accurate Localization of Outflow Tract Ventricular Arrhythmia Origin?
Answer: The combined TZ index outperformed other ECG criteria to differentiate left from right OT-VA origins.
[EX A]: yes

[EX Q]: Question: Does ercc1 Deficiency promote Tumorigenesis and Increases Cisplatin Sensitivity in a Tp53 Context-Specific Manner?
Answer: This study provides a solid rationale for the stratification of lung adenocarcinoma patients according to the functional ERCC1- and mutational TP53 status, where functionally ERCC1-incompetent patients could benefit from sequential cisplatin and etoposide chemotherapy. Mol Cancer Res; 14(11); 1110-23. ©2016 AACR.
[EX A]:
yes