Alex Da Silva, a salsa dance instructor and choreographer for Fox's "So You Think You Can Dance," was arrested Saturday on suspicion of sexually assaulting four of his students, according to a statement from the Los Angeles Police Department. Da Silva, 41, is accused of assaulting the students in his two homes in the San Fernando Valley over the last six years, police said. He is being held in lieu of $3.8 million bail. Authorities said the four victims were all students of Da Silva at the time of the assaults.
Can we say the following?
Alex Da Silva is a student of salsa dance.

no

The Dow Jones Industrial Average (DJIA), one of the main stock indices in the United States, has broken an all-time closing record, to close at 14,000.41 points which is up 82.19 points (0.59%) from its last close. Just 59 days before, the Dow hit an all-time high when it passed 13,000. This is the first time the DJIA has ever closed above 14,000 since its debut on May 26, 1896.
Can we say the following?
The Dow Jones has gained points.

yes

The recent 14% hike in third class postage rates, accompanied by simultaneous double-digit paper price increases, has hit smaller catalogers especially hard.
Can we say the following?
The cost of paper is rising.

yes

Britain said, Friday, that it has barred cleric, Omar Bakri, from returning to the country from Lebanon, where he was released by police after being detained for 24 hours.
Can we say the following?
Bakri was briefly detained, but was released.
yes