A lancet arch is a window with a pointed arch, these are considered somewhat gothic and often have stained glass or other designs on them. They were used as decoration in churches, castles, ballrooms, etc.
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The piano was invented by Bartolomeo Cristofori (1655-1731) of Italy. Cristofori was unsatisfied by the lack of control that musicians had over the volume level of the harpsichord. He is credited for switching out the plucking mechanism with a hammer to create the modern piano in around the year 1700
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Alright, recommendations to address teenage pregnancy are to: seek parental care, get tested for sexually transmitted infections, eat a healthy diet, stay physically active, gain weight wisely, avoid risky substances and take childbirth classes.
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