does eastern airlines fly early in the morning between logan and bwi 
return flights ;return #1 on eastern airlines ;return #2 from  logan ;return #3 to bwi ;return #4 that are early in  the  morning ;return number of  #5 ;return if #6 is at least one
['select', 'filter', 'filter', 'filter', 'filter', 'aggregate', 'boolean']