annotation 1: $\mathrm{Content\; MathML}$

annotation 2: $\sin x + 5$

annotation 3: $\mathrm{Content\; MathML}$

annotation-xml 1: $\mathrm{Content\; MathML}$

annotation-xml 2: $\mathrm{Content\; MathML}$

annotation-xml 3: $\mathrm{Content\; MathML}$

annotation-xml 4: $\mathrm{Content\; MathML}$

annotation-xml 5: $\mathrm{Content\; MathML}$

annotation-xml 6: $\mathrm{Content\; MathML}$

annotation-xml 7: $\mathrm{Content\; MathML}$