What does the tempo marking andante mean?
a. very slow
b. fast and cheerful
c. as fast as possible
d. at a walking pace

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"