create virtual column with number of rows that match a condition

[XJ581G]

hello to every one , i like your help with the following :

i have a table like this:

ID	ESP	MAT	HIS	FCE	BIO	EDF	TEC
AA7887	5	6	7	5	5	5	6

what i want is to create a virtual column that make a list with the names of the columns that have a value equal to 5, in this case the list would be: ESP, FCE, BIO, EDF.

THANKS FOR THE HELP