Table: layout_engine_comparison
Columns: trident
gecko
webkit
khtml
presto
prince_xml

Question: For the item that has a Gecko of 'font', what is the KHTML value?
SQL: SELECT "khtml" FROM layout_engine_comparison WHERE "gecko" = 'font'

Question: What is the Prince XML value for the engine that has a Gecko value of 'no' and webkit value of 'nightly build'?
SQL: SELECT "prince_xml" FROM layout_engine_comparison WHERE "gecko" = 'no' AND "webkit" = 'nightly build'

Question: What is the Gecko value for the item that has a Trident value of 'font'?
SQL: SELECT "gecko" FROM layout_engine_comparison WHERE "trident" = 'font'

Question: What is the Gecko value for the item that has a Prince XML value of 'no' and a KHTML value of 'yes'?
SQL: SELECT "gecko" FROM layout_engine_comparison WHERE "prince_xml" = 'yes' AND "khtml" = 'yes'

Question: Which Trident version has a Gecko value of 19.0?
SQL: SELECT "trident" FROM layout_engine_comparison WHERE "gecko" = '19.0'

Question: For the item with a Prince XML value of 'font', what is the WebKit value?
SQL: SELECT "webkit" FROM layout_engine_comparison WHERE "prince_xml" = 'font'